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Merge branch 'testing' of github.com:ceph/ceph-client into into linux-3.8-ceph

This commit is contained in:
Alex Elder 2013-02-19 19:20:56 -06:00
parent 19f949f525 903bb32e89
commit 4c7a08c83a
26 changed files with 1803 additions and 1172 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1871
drivers/block/rbd.c
View File

File diff suppressed because it is too large Load Diff

7
fs/ceph/addr.c
View File

@ -315,7 +315,7 @@ static int start_read(struct inode *inode, struct list_head *page_list, int max)
CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
NULL, 0,
ci->i_truncate_seq, ci->i_truncate_size,
NULL, false, 1, 0);
NULL, false, 0);
if (IS_ERR(req))
return PTR_ERR(req);
@ -492,8 +492,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
&ci->i_layout, snapc,
page_off, len,
ci->i_truncate_seq, ci->i_truncate_size,
&inode->i_mtime,
&page, 1, 0, 0, true);
&inode->i_mtime, &page, 1);
if (err < 0) {
dout("writepage setting page/mapping error %d %p\n", err, page);
SetPageError(page);
@ -838,7 +837,7 @@ get_more_pages:
snapc, do_sync,
ci->i_truncate_seq,
ci->i_truncate_size,
&inode->i_mtime, true, 1, 0);
&inode->i_mtime, true, 0);
if (IS_ERR(req)) {
rc = PTR_ERR(req);

32
fs/ceph/caps.c
View File

@ -611,8 +611,16 @@ retry:
if (flags & CEPH_CAP_FLAG_AUTH)
ci->i_auth_cap = cap;
else if (ci->i_auth_cap == cap)
else if (ci->i_auth_cap == cap) {
ci->i_auth_cap = NULL;
spin_lock(&mdsc->cap_dirty_lock);
if (!list_empty(&ci->i_dirty_item)) {
dout(" moving %p to cap_dirty_migrating\n", inode);
list_move(&ci->i_dirty_item,
&mdsc->cap_dirty_migrating);
}
spin_unlock(&mdsc->cap_dirty_lock);
}
dout("add_cap inode %p (%llx.%llx) cap %p %s now %s seq %d mds%d\n",
inode, ceph_vinop(inode), cap, ceph_cap_string(issued),
@ -1460,7 +1468,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
struct ceph_mds_client *mdsc = fsc->mdsc;
struct inode *inode = &ci->vfs_inode;
struct ceph_cap *cap;
int file_wanted, used;
int file_wanted, used, cap_used;
int took_snap_rwsem = 0; /* true if mdsc->snap_rwsem held */
int issued, implemented, want, retain, revoking, flushing = 0;
int mds = -1; /* keep track of how far we've gone through i_caps list
@ -1563,9 +1571,14 @@ retry_locked:
/* NOTE: no side-effects allowed, until we take s_mutex */
cap_used = used;
if (ci->i_auth_cap && cap != ci->i_auth_cap)
cap_used &= ~ci->i_auth_cap->issued;
revoking = cap->implemented & ~cap->issued;
dout(" mds%d cap %p issued %s implemented %s revoking %s\n",
dout(" mds%d cap %p used %s issued %s implemented %s revoking %s\n",
cap->mds, cap, ceph_cap_string(cap->issued),
ceph_cap_string(cap_used),
ceph_cap_string(cap->implemented),
ceph_cap_string(revoking));
@ -1593,7 +1606,7 @@ retry_locked:
}
/* completed revocation? going down and there are no caps? */
if (revoking && (revoking & used) == 0) {
if (revoking && (revoking & cap_used) == 0) {
dout("completed revocation of %s\n",
ceph_cap_string(cap->implemented & ~cap->issued));
goto ack;
@ -1670,8 +1683,8 @@ ack:
sent++;
/* __send_cap drops i_ceph_lock */
delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, used, want,
retain, flushing, NULL);
delayed += __send_cap(mdsc, cap, CEPH_CAP_OP_UPDATE, cap_used,
want, retain, flushing, NULL);
goto retry; /* retake i_ceph_lock and restart our cap scan. */
}
@ -2416,7 +2429,9 @@ static void handle_cap_grant(struct inode *inode, struct ceph_mds_caps *grant,
dout("mds wanted %s -> %s\n",
ceph_cap_string(le32_to_cpu(grant->wanted)),
ceph_cap_string(wanted));
grant->wanted = cpu_to_le32(wanted);
/* imported cap may not have correct mds_wanted */
if (le32_to_cpu(grant->op) == CEPH_CAP_OP_IMPORT)
check_caps = 1;
}
cap->seq = seq;
@ -2820,6 +2835,9 @@ void ceph_handle_caps(struct ceph_mds_session *session,
dout(" mds%d seq %lld cap seq %u\n", session->s_mds, session->s_seq,
(unsigned)seq);
if (op == CEPH_CAP_OP_IMPORT)
ceph_add_cap_releases(mdsc, session);
/* lookup ino */
inode = ceph_find_inode(sb, vino);
ci = ceph_inode(inode);

8
fs/ceph/file.c
View File

@ -243,6 +243,9 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
err = ceph_mdsc_do_request(mdsc,
(flags & (O_CREAT|O_TRUNC)) ? dir : NULL,
req);
if (err)
goto out_err;
err = ceph_handle_snapdir(req, dentry, err);
if (err == 0 && (flags & O_CREAT) && !req->r_reply_info.head->is_dentry)
err = ceph_handle_notrace_create(dir, dentry);
@ -263,6 +266,9 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
err = finish_no_open(file, dn);
} else {
dout("atomic_open finish_open on dn %p\n", dn);
if (req->r_op == CEPH_MDS_OP_CREATE && req->r_reply_info.has_create_ino) {
*opened |= FILE_CREATED;
}
err = finish_open(file, dentry, ceph_open, opened);
}
@ -535,7 +541,7 @@ more:
ci->i_snap_realm->cached_context,
do_sync,
ci->i_truncate_seq, ci->i_truncate_size,
&mtime, false, 2, page_align);
&mtime, false, page_align);
if (IS_ERR(req))
return PTR_ERR(req);

2
fs/ceph/ioctl.c
View File

@ -194,7 +194,7 @@ static long ceph_ioctl_get_dataloc(struct file *file, void __user *arg)
return -EFAULT;
down_read(&osdc->map_sem);
r = ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, &len,
r = ceph_calc_file_object_mapping(&ci->i_layout, dl.file_offset, len,
&dl.object_no, &dl.object_offset,
&olen);
if (r < 0)

33
fs/ceph/mds_client.c
View File

@ -232,6 +232,30 @@ bad:
return -EIO;
}
/*
* parse create results
*/
static int parse_reply_info_create(void **p, void *end,
struct ceph_mds_reply_info_parsed *info,
int features)
{
if (features & CEPH_FEATURE_REPLY_CREATE_INODE) {
if (*p == end) {
info->has_create_ino = false;
} else {
info->has_create_ino = true;
info->ino = ceph_decode_64(p);
}
}
if (unlikely(*p != end))
goto bad;
return 0;
bad:
return -EIO;
}
/*
* parse extra results
*/
@ -241,8 +265,12 @@ static int parse_reply_info_extra(void **p, void *end,
{
if (info->head->op == CEPH_MDS_OP_GETFILELOCK)
return parse_reply_info_filelock(p, end, info, features);
else
else if (info->head->op == CEPH_MDS_OP_READDIR)
return parse_reply_info_dir(p, end, info, features);
else if (info->head->op == CEPH_MDS_OP_CREATE)
return parse_reply_info_create(p, end, info, features);
else
return -EIO;
}
/*
@ -2170,7 +2198,8 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
mutex_lock(&req->r_fill_mutex);
err = ceph_fill_trace(mdsc->fsc->sb, req, req->r_session);
if (err == 0) {
if (result == 0 && req->r_op != CEPH_MDS_OP_GETFILELOCK &&
if (result == 0 && (req->r_op == CEPH_MDS_OP_READDIR ||
req->r_op == CEPH_MDS_OP_LSSNAP) &&
rinfo->dir_nr)
ceph_readdir_prepopulate(req, req->r_session);
ceph_unreserve_caps(mdsc, &req->r_caps_reservation);

6
fs/ceph/mds_client.h
View File

@ -74,6 +74,12 @@ struct ceph_mds_reply_info_parsed {
struct ceph_mds_reply_info_in *dir_in;
u8 dir_complete, dir_end;
};
/* for create results */
struct {
bool has_create_ino;
u64 ino;
};
};
/* encoded blob describing snapshot contexts for certain

4
fs/ceph/strings.c
View File

@ -15,6 +15,7 @@ const char *ceph_mds_state_name(int s)
case CEPH_MDS_STATE_BOOT: return "up:boot";
case CEPH_MDS_STATE_STANDBY: return "up:standby";
case CEPH_MDS_STATE_STANDBY_REPLAY: return "up:standby-replay";
case CEPH_MDS_STATE_REPLAYONCE: return "up:oneshot-replay";
case CEPH_MDS_STATE_CREATING: return "up:creating";
case CEPH_MDS_STATE_STARTING: return "up:starting";
/* up and in */
@ -50,10 +51,13 @@ const char *ceph_mds_op_name(int op)
case CEPH_MDS_OP_LOOKUP: return "lookup";
case CEPH_MDS_OP_LOOKUPHASH: return "lookuphash";
case CEPH_MDS_OP_LOOKUPPARENT: return "lookupparent";
case CEPH_MDS_OP_LOOKUPINO: return "lookupino";
case CEPH_MDS_OP_GETATTR: return "getattr";
case CEPH_MDS_OP_SETXATTR: return "setxattr";
case CEPH_MDS_OP_SETATTR: return "setattr";
case CEPH_MDS_OP_RMXATTR: return "rmxattr";
case CEPH_MDS_OP_SETLAYOUT: return "setlayou";
case CEPH_MDS_OP_SETDIRLAYOUT: return "setdirlayout";
case CEPH_MDS_OP_READDIR: return "readdir";
case CEPH_MDS_OP_MKNOD: return "mknod";
case CEPH_MDS_OP_LINK: return "link";

8
fs/ceph/super.h
View File

@ -798,13 +798,7 @@ extern int ceph_mmap(struct file *file, struct vm_area_struct *vma);
/* file.c */
extern const struct file_operations ceph_file_fops;
extern const struct address_space_operations ceph_aops;
extern int ceph_copy_to_page_vector(struct page **pages,
const char *data,
loff_t off, size_t len);
extern int ceph_copy_from_page_vector(struct page **pages,
char *data,
loff_t off, size_t len);
extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
extern int ceph_open(struct inode *inode, struct file *file);
extern int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
struct file *file, unsigned flags, umode_t mode,

210
fs/ceph/xattr.c
View File

@ -29,9 +29,94 @@ struct ceph_vxattr {
size_t name_size; /* strlen(name) + 1 (for '\0') */
size_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val,
size_t size);
bool readonly;
bool readonly, hidden;
bool (*exists_cb)(struct ceph_inode_info *ci);
};
/* layouts */
static bool ceph_vxattrcb_layout_exists(struct ceph_inode_info *ci)
{
size_t s;
char *p = (char *)&ci->i_layout;
for (s = 0; s < sizeof(ci->i_layout); s++, p++)
if (*p)
return true;
return false;
}
static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
size_t size)
{
int ret;
struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
struct ceph_osd_client *osdc = &fsc->client->osdc;
s64 pool = ceph_file_layout_pg_pool(ci->i_layout);
const char *pool_name;
dout("ceph_vxattrcb_layout %p\n", &ci->vfs_inode);
down_read(&osdc->map_sem);
pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
if (pool_name)
ret = snprintf(val, size,
"stripe_unit=%lld stripe_count=%lld object_size=%lld pool=%s",
(unsigned long long)ceph_file_layout_su(ci->i_layout),
(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
(unsigned long long)ceph_file_layout_object_size(ci->i_layout),
pool_name);
else
ret = snprintf(val, size,
"stripe_unit=%lld stripe_count=%lld object_size=%lld pool=%lld",
(unsigned long long)ceph_file_layout_su(ci->i_layout),
(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
(unsigned long long)ceph_file_layout_object_size(ci->i_layout),
(unsigned long long)pool);
up_read(&osdc->map_sem);
return ret;
}
static size_t ceph_vxattrcb_layout_stripe_unit(struct ceph_inode_info *ci,
char *val, size_t size)
{
return snprintf(val, size, "%lld",
(unsigned long long)ceph_file_layout_su(ci->i_layout));
}
static size_t ceph_vxattrcb_layout_stripe_count(struct ceph_inode_info *ci,
char *val, size_t size)
{
return snprintf(val, size, "%lld",
(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout));
}
static size_t ceph_vxattrcb_layout_object_size(struct ceph_inode_info *ci,
char *val, size_t size)
{
return snprintf(val, size, "%lld",
(unsigned long long)ceph_file_layout_object_size(ci->i_layout));
}
static size_t ceph_vxattrcb_layout_pool(struct ceph_inode_info *ci,
char *val, size_t size)
{
int ret;
struct ceph_fs_client *fsc = ceph_sb_to_client(ci->vfs_inode.i_sb);
struct ceph_osd_client *osdc = &fsc->client->osdc;
s64 pool = ceph_file_layout_pg_pool(ci->i_layout);
const char *pool_name;
down_read(&osdc->map_sem);
pool_name = ceph_pg_pool_name_by_id(osdc->osdmap, pool);
if (pool_name)
ret = snprintf(val, size, "%s", pool_name);
else
ret = snprintf(val, size, "%lld", (unsigned long long)pool);
up_read(&osdc->map_sem);
return ret;
}
/* directories */
static size_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val,
@ -83,17 +168,43 @@ static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
(long)ci->i_rctime.tv_nsec);
}
#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name
#define XATTR_NAME_CEPH(_type, _name) \
{ \
.name = CEPH_XATTR_NAME(_type, _name), \
.name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
.getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
.readonly = true, \
}
#define CEPH_XATTR_NAME(_type, _name) XATTR_CEPH_PREFIX #_type "." #_name
#define CEPH_XATTR_NAME2(_type, _name, _name2) \
XATTR_CEPH_PREFIX #_type "." #_name "." #_name2
#define XATTR_NAME_CEPH(_type, _name) \
{ \
.name = CEPH_XATTR_NAME(_type, _name), \
.name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
.getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
.readonly = true, \
.hidden = false, \
.exists_cb = NULL, \
}
#define XATTR_LAYOUT_FIELD(_type, _name, _field) \
{ \
.name = CEPH_XATTR_NAME2(_type, _name, _field), \
.name_size = sizeof (CEPH_XATTR_NAME2(_type, _name, _field)), \
.getxattr_cb = ceph_vxattrcb_ ## _name ## _ ## _field, \
.readonly = false, \
.hidden = true, \
.exists_cb = ceph_vxattrcb_layout_exists, \
}
static struct ceph_vxattr ceph_dir_vxattrs[] = {
{
.name = "ceph.dir.layout",
.name_size = sizeof("ceph.dir.layout"),
.getxattr_cb = ceph_vxattrcb_layout,
.readonly = false,
.hidden = false,
.exists_cb = ceph_vxattrcb_layout_exists,
},
XATTR_LAYOUT_FIELD(dir, layout, stripe_unit),
XATTR_LAYOUT_FIELD(dir, layout, stripe_count),
XATTR_LAYOUT_FIELD(dir, layout, object_size),
XATTR_LAYOUT_FIELD(dir, layout, pool),
XATTR_NAME_CEPH(dir, entries),
XATTR_NAME_CEPH(dir, files),
XATTR_NAME_CEPH(dir, subdirs),
@ -108,28 +219,19 @@ static size_t ceph_dir_vxattrs_name_size; /* total size of all names */
/* files */
static size_t ceph_vxattrcb_file_layout(struct ceph_inode_info *ci, char *val,
size_t size)
{
int ret;
ret = snprintf(val, size,
"chunk_bytes=%lld\nstripe_count=%lld\nobject_size=%lld\n",
(unsigned long long)ceph_file_layout_su(ci->i_layout),
(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
(unsigned long long)ceph_file_layout_object_size(ci->i_layout));
return ret;
}
static struct ceph_vxattr ceph_file_vxattrs[] = {
XATTR_NAME_CEPH(file, layout),
/* The following extended attribute name is deprecated */
{
.name = XATTR_CEPH_PREFIX "layout",
.name_size = sizeof (XATTR_CEPH_PREFIX "layout"),
.getxattr_cb = ceph_vxattrcb_file_layout,
.readonly = true,
.name = "ceph.file.layout",
.name_size = sizeof("ceph.file.layout"),
.getxattr_cb = ceph_vxattrcb_layout,
.readonly = false,
.hidden = false,
.exists_cb = ceph_vxattrcb_layout_exists,
},
XATTR_LAYOUT_FIELD(file, layout, stripe_unit),
XATTR_LAYOUT_FIELD(file, layout, stripe_count),
XATTR_LAYOUT_FIELD(file, layout, object_size),
XATTR_LAYOUT_FIELD(file, layout, pool),
{ 0 } /* Required table terminator */
};
static size_t ceph_file_vxattrs_name_size; /* total size of all names */
@ -164,7 +266,8 @@ static size_t __init vxattrs_name_size(struct ceph_vxattr *vxattrs)
size_t size = 0;
for (vxattr = vxattrs; vxattr->name; vxattr++)
size += vxattr->name_size;
if (!vxattr->hidden)
size += vxattr->name_size;
return size;
}
@ -572,13 +675,17 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
if (!ceph_is_valid_xattr(name))
return -ENODATA;
/* let's see if a virtual xattr was requested */
vxattr = ceph_match_vxattr(inode, name);
spin_lock(&ci->i_ceph_lock);
dout("getxattr %p ver=%lld index_ver=%lld\n", inode,
ci->i_xattrs.version, ci->i_xattrs.index_version);
/* let's see if a virtual xattr was requested */
vxattr = ceph_match_vxattr(inode, name);
if (vxattr && !(vxattr->exists_cb && !vxattr->exists_cb(ci))) {
err = vxattr->getxattr_cb(ci, value, size);
goto out;
}
if (__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 1) &&
(ci->i_xattrs.index_version >= ci->i_xattrs.version)) {
goto get_xattr;
@ -592,11 +699,6 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
spin_lock(&ci->i_ceph_lock);
if (vxattr && vxattr->readonly) {
err = vxattr->getxattr_cb(ci, value, size);
goto out;
}
err = __build_xattrs(inode);
if (err < 0)
goto out;
@ -604,11 +706,8 @@ ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
get_xattr:
err = -ENODATA; /* == ENOATTR */
xattr = __get_xattr(ci, name);
if (!xattr) {
if (vxattr)
err = vxattr->getxattr_cb(ci, value, size);
if (!xattr)
goto out;
}
err = -ERANGE;
if (size && size < xattr->val_len)
@ -664,23 +763,30 @@ list_xattr:
vir_namelen = ceph_vxattrs_name_size(vxattrs);
/* adding 1 byte per each variable due to the null termination */
namelen = vir_namelen + ci->i_xattrs.names_size + ci->i_xattrs.count;
namelen = ci->i_xattrs.names_size + ci->i_xattrs.count;
err = -ERANGE;
if (size && namelen > size)
if (size && vir_namelen + namelen > size)
goto out;
err = namelen;
err = namelen + vir_namelen;
if (size == 0)
goto out;
names = __copy_xattr_names(ci, names);
/* virtual xattr names, too */
if (vxattrs)
err = namelen;
if (vxattrs) {
for (i = 0; vxattrs[i].name; i++) {
len = sprintf(names, "%s", vxattrs[i].name);
names += len + 1;
if (!vxattrs[i].hidden &&
!(vxattrs[i].exists_cb &&
!vxattrs[i].exists_cb(ci))) {
len = sprintf(names, "%s", vxattrs[i].name);
names += len + 1;
err += len + 1;
}
}
}
out:
spin_unlock(&ci->i_ceph_lock);
@ -782,6 +888,10 @@ int ceph_setxattr(struct dentry *dentry, const char *name,
if (vxattr && vxattr->readonly)
return -EOPNOTSUPP;
/* pass any unhandled ceph.* xattrs through to the MDS */
if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN))
goto do_sync_unlocked;
/* preallocate memory for xattr name, value, index node */
err = -ENOMEM;
newname = kmemdup(name, name_len + 1, GFP_NOFS);
@ -838,6 +948,7 @@ retry:
do_sync:
spin_unlock(&ci->i_ceph_lock);
do_sync_unlocked:
err = ceph_sync_setxattr(dentry, name, value, size, flags);
out:
kfree(newname);
@ -892,6 +1003,10 @@ int ceph_removexattr(struct dentry *dentry, const char *name)
if (vxattr && vxattr->readonly)
return -EOPNOTSUPP;
/* pass any unhandled ceph.* xattrs through to the MDS */
if (!strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN))
goto do_sync_unlocked;
err = -ENOMEM;
spin_lock(&ci->i_ceph_lock);
retry:
@ -931,6 +1046,7 @@ retry:
return err;
do_sync:
spin_unlock(&ci->i_ceph_lock);
do_sync_unlocked:
err = ceph_send_removexattr(dentry, name);
out:
return err;

8
include/linux/ceph/ceph_features.h
View File

@ -14,13 +14,19 @@
#define CEPH_FEATURE_DIRLAYOUTHASH (1<<7)
/* bits 8-17 defined by user-space; not supported yet here */
#define CEPH_FEATURE_CRUSH_TUNABLES (1<<18)
/* bits 19-24 defined by user-space; not supported yet here */
#define CEPH_FEATURE_CRUSH_TUNABLES2 (1<<25)
/* bit 26 defined by user-space; not supported yet here */
#define CEPH_FEATURE_REPLY_CREATE_INODE (1<<27)
/*
* Features supported.
*/
#define CEPH_FEATURES_SUPPORTED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR | \
CEPH_FEATURE_CRUSH_TUNABLES)
CEPH_FEATURE_CRUSH_TUNABLES | \
CEPH_FEATURE_CRUSH_TUNABLES2 | \
CEPH_FEATURE_REPLY_CREATE_INODE)
#define CEPH_FEATURES_REQUIRED_DEFAULT \
(CEPH_FEATURE_NOSRCADDR)

32
include/linux/ceph/ceph_fs.h
View File

@ -21,16 +21,14 @@
* internal cluster protocols separately from the public,
* client-facing protocol.
*/
#define CEPH_OSD_PROTOCOL 8 /* cluster internal */
#define CEPH_MDS_PROTOCOL 12 /* cluster internal */
#define CEPH_MON_PROTOCOL 5 /* cluster internal */
#define CEPH_OSDC_PROTOCOL 24 /* server/client */
#define CEPH_MDSC_PROTOCOL 32 /* server/client */
#define CEPH_MONC_PROTOCOL 15 /* server/client */
#define CEPH_INO_ROOT 1
#define CEPH_INO_CEPH 2 /* hidden .ceph dir */
#define CEPH_INO_ROOT 1
#define CEPH_INO_CEPH 2 /* hidden .ceph dir */
#define CEPH_INO_DOTDOT 3 /* used by ceph fuse for parent (..) */
/* arbitrary limit on max # of monitors (cluster of 3 is typical) */
#define CEPH_MAX_MON 31
@ -51,7 +49,7 @@ struct ceph_file_layout {
__le32 fl_object_stripe_unit; /* UNUSED. for per-object parity, if any */
/* object -> pg layout */
__le32 fl_unused; /* unused; used to be preferred primary (-1) */
__le32 fl_unused; /* unused; used to be preferred primary for pg (-1 for none) */
__le32 fl_pg_pool; /* namespace, crush ruleset, rep level */
} __attribute__ ((packed));
@ -101,6 +99,8 @@ struct ceph_dir_layout {
#define CEPH_MSG_MON_SUBSCRIBE_ACK 16
#define CEPH_MSG_AUTH 17
#define CEPH_MSG_AUTH_REPLY 18
#define CEPH_MSG_MON_GET_VERSION 19
#define CEPH_MSG_MON_GET_VERSION_REPLY 20
/* client <-> mds */
#define CEPH_MSG_MDS_MAP 21
@ -220,6 +220,11 @@ struct ceph_mon_subscribe_ack {
struct ceph_fsid fsid;
} __attribute__ ((packed));
/*
* mdsmap flags
*/
#define CEPH_MDSMAP_DOWN (1<<0) /* cluster deliberately down */
/*
* mds states
* > 0 -> in
@ -233,6 +238,7 @@ struct ceph_mon_subscribe_ack {
#define CEPH_MDS_STATE_CREATING -6 /* up, creating MDS instance. */
#define CEPH_MDS_STATE_STARTING -7 /* up, starting previously stopped mds */
#define CEPH_MDS_STATE_STANDBY_REPLAY -8 /* up, tailing active node's journal */
#define CEPH_MDS_STATE_REPLAYONCE -9 /* up, replaying an active node's journal */
#define CEPH_MDS_STATE_REPLAY 8 /* up, replaying journal. */
#define CEPH_MDS_STATE_RESOLVE 9 /* up, disambiguating distributed
@ -264,6 +270,7 @@ extern const char *ceph_mds_state_name(int s);
#define CEPH_LOCK_IXATTR 2048
#define CEPH_LOCK_IFLOCK 4096 /* advisory file locks */
#define CEPH_LOCK_INO 8192 /* immutable inode bits; not a lock */
#define CEPH_LOCK_IPOLICY 16384 /* policy lock on dirs. MDS internal */
/* client_session ops */
enum {
@ -338,6 +345,12 @@ extern const char *ceph_mds_op_name(int op);
#define CEPH_SETATTR_SIZE 32
#define CEPH_SETATTR_CTIME 64
/*
* Ceph setxattr request flags.
*/
#define CEPH_XATTR_CREATE 1
#define CEPH_XATTR_REPLACE 2
union ceph_mds_request_args {
struct {
__le32 mask; /* CEPH_CAP_* */
@ -522,14 +535,17 @@ int ceph_flags_to_mode(int flags);
#define CEPH_CAP_GWREXTEND 64 /* (file) client can extend EOF */
#define CEPH_CAP_GLAZYIO 128 /* (file) client can perform lazy io */
#define CEPH_CAP_SIMPLE_BITS 2
#define CEPH_CAP_FILE_BITS 8
/* per-lock shift */
#define CEPH_CAP_SAUTH 2
#define CEPH_CAP_SLINK 4
#define CEPH_CAP_SXATTR 6
#define CEPH_CAP_SFILE 8
#define CEPH_CAP_SFLOCK 20
#define CEPH_CAP_SFLOCK 20
#define CEPH_CAP_BITS 22
#define CEPH_CAP_BITS 22
/* composed values */
#define CEPH_CAP_AUTH_SHARED (CEPH_CAP_GSHARED << CEPH_CAP_SAUTH)

29
include/linux/ceph/decode.h
View File

@ -52,10 +52,10 @@ static inline int ceph_has_room(void **p, void *end, size_t n)
return end >= *p && n <= end - *p;
}
#define ceph_decode_need(p, end, n, bad) \
do { \
if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
#define ceph_decode_need(p, end, n, bad) \
do { \
if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
} while (0)
#define ceph_decode_64_safe(p, end, v, bad) \
@ -99,8 +99,8 @@ static inline int ceph_has_room(void **p, void *end, size_t n)
*
* There are two possible failures:
* - converting the string would require accessing memory at or
* beyond the "end" pointer provided (-E
* - memory could not be allocated for the result
* beyond the "end" pointer provided (-ERANGE)
* - memory could not be allocated for the result (-ENOMEM)
*/
static inline char *ceph_extract_encoded_string(void **p, void *end,
size_t *lenp, gfp_t gfp)
@ -217,10 +217,10 @@ static inline void ceph_encode_string(void **p, void *end,
*p += len;
}
#define ceph_encode_need(p, end, n, bad) \
do { \
if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
#define ceph_encode_need(p, end, n, bad) \
do { \
if (!likely(ceph_has_room(p, end, n))) \
goto bad; \
} while (0)
#define ceph_encode_64_safe(p, end, v, bad) \
@ -231,12 +231,17 @@ static inline void ceph_encode_string(void **p, void *end,
#define ceph_encode_32_safe(p, end, v, bad) \
do { \
ceph_encode_need(p, end, sizeof(u32), bad); \
ceph_encode_32(p, v); \
ceph_encode_32(p, v); \
} while (0)
#define ceph_encode_16_safe(p, end, v, bad) \
do { \
ceph_encode_need(p, end, sizeof(u16), bad); \
ceph_encode_16(p, v); \
ceph_encode_16(p, v); \
} while (0)
#define ceph_encode_8_safe(p, end, v, bad) \
do { \
ceph_encode_need(p, end, sizeof(u8), bad); \
ceph_encode_8(p, v); \
} while (0)
#define ceph_encode_copy_safe(p, end, pv, n, bad) \

16
include/linux/ceph/libceph.h
View File

@ -193,6 +193,8 @@ static inline int calc_pages_for(u64 off, u64 len)
}
/* ceph_common.c */
extern bool libceph_compatible(void *data);
extern const char *ceph_msg_type_name(int type);
extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid);
extern struct kmem_cache *ceph_inode_cachep;
@ -220,7 +222,7 @@ extern int ceph_open_session(struct ceph_client *client);
/* pagevec.c */
extern void ceph_release_page_vector(struct page **pages, int num_pages);
extern struct page **ceph_get_direct_page_vector(const char __user *data,
extern struct page **ceph_get_direct_page_vector(const void __user *data,
int num_pages,
bool write_page);
extern void ceph_put_page_vector(struct page **pages, int num_pages,
@ -228,15 +230,15 @@ extern void ceph_put_page_vector(struct page **pages, int num_pages,
extern void ceph_release_page_vector(struct page **pages, int num_pages);
extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);
extern int ceph_copy_user_to_page_vector(struct page **pages,
const char __user *data,
const void __user *data,
loff_t off, size_t len);
extern int ceph_copy_to_page_vector(struct page **pages,
const char *data,
extern void ceph_copy_to_page_vector(struct page **pages,
const void *data,
loff_t off, size_t len);
extern int ceph_copy_from_page_vector(struct page **pages,
char *data,
extern void ceph_copy_from_page_vector(struct page **pages,
void *data,
loff_t off, size_t len);
extern int ceph_copy_page_vector_to_user(struct page **pages, char __user *data,
extern int ceph_copy_page_vector_to_user(struct page **pages, void __user *data,
loff_t off, size_t len);
extern void ceph_zero_page_vector_range(int off, int len, struct page **pages);

2
include/linux/ceph/messenger.h
View File

@ -83,9 +83,11 @@ struct ceph_msg {
struct list_head list_head;
struct kref kref;
#ifdef CONFIG_BLOCK
struct bio *bio; /* instead of pages/pagelist */
struct bio *bio_iter; /* bio iterator */
int bio_seg; /* current bio segment */
#endif /* CONFIG_BLOCK */
struct ceph_pagelist *trail; /* the trailing part of the data */
bool front_is_vmalloc;
bool more_to_follow;

54
include/linux/ceph/osd_client.h
View File

@ -10,6 +10,7 @@
#include <linux/ceph/osdmap.h>
#include <linux/ceph/messenger.h>
#include <linux/ceph/auth.h>
#include <linux/ceph/pagelist.h>
/*
* Maximum object name size
@ -22,7 +23,6 @@ struct ceph_snap_context;
struct ceph_osd_request;
struct ceph_osd_client;
struct ceph_authorizer;
struct ceph_pagelist;
/*
* completion callback for async writepages
@ -95,7 +95,7 @@ struct ceph_osd_request {
struct bio *r_bio; /* instead of pages */
#endif
struct ceph_pagelist *r_trail; /* trailing part of the data */
struct ceph_pagelist r_trail; /* trailing part of the data */
};
struct ceph_osd_event {
@ -107,7 +107,6 @@ struct ceph_osd_event {
struct rb_node node;
struct list_head osd_node;
struct kref kref;
struct completion completion;
};
struct ceph_osd_event_work {
@ -157,7 +156,7 @@ struct ceph_osd_client {
struct ceph_osd_req_op {
u16 op; /* CEPH_OSD_OP_* */
u32 flags; /* CEPH_OSD_FLAG_* */
u32 payload_len;
union {
struct {
u64 offset, length;
@ -166,23 +165,24 @@ struct ceph_osd_req_op {
} extent;
struct {
const char *name;
u32 name_len;
const char *val;
u32 name_len;
u32 value_len;
__u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
__u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
} xattr;
struct {
const char *class_name;
__u8 class_len;
const char *method_name;
__u8 method_len;
__u8 argc;
const char *indata;
u32 indata_len;
__u8 class_len;
__u8 method_len;
__u8 argc;
} cls;
struct {
u64 cookie, count;
u64 cookie;
u64 count;
} pgls;
struct {
u64 snapid;
@ -190,12 +190,11 @@ struct ceph_osd_req_op {
struct {
u64 cookie;
u64 ver;
__u8 flag;
u32 prot_ver;
u32 timeout;
__u8 flag;
} watch;
};
u32 payload_len;
};
extern int ceph_osdc_init(struct ceph_osd_client *osdc,
@ -207,29 +206,19 @@ extern void ceph_osdc_handle_reply(struct ceph_osd_client *osdc,
extern void ceph_osdc_handle_map(struct ceph_osd_client *osdc,
struct ceph_msg *msg);
extern int ceph_calc_raw_layout(struct ceph_osd_client *osdc,
struct ceph_file_layout *layout,
u64 snapid,
u64 off, u64 *plen, u64 *bno,
struct ceph_osd_request *req,
struct ceph_osd_req_op *op);
extern struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
int flags,
struct ceph_snap_context *snapc,
struct ceph_osd_req_op *ops,
unsigned int num_op,
bool use_mempool,
gfp_t gfp_flags,
struct page **pages,
struct bio *bio);
gfp_t gfp_flags);
extern void ceph_osdc_build_request(struct ceph_osd_request *req,
u64 off, u64 *plen,
u64 off, u64 len,
unsigned int num_op,
struct ceph_osd_req_op *src_ops,
struct ceph_snap_context *snapc,
struct timespec *mtime,
const char *oid,
int oid_len);
u64 snap_id,
struct timespec *mtime);
extern struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *,
struct ceph_file_layout *layout,
@ -239,8 +228,7 @@ extern struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *,
int do_sync, u32 truncate_seq,
u64 truncate_size,
struct timespec *mtime,
bool use_mempool, int num_reply,
int page_align);
bool use_mempool, int page_align);
extern void ceph_osdc_set_request_linger(struct ceph_osd_client *osdc,
struct ceph_osd_request *req);
@ -279,17 +267,13 @@ extern int ceph_osdc_writepages(struct ceph_osd_client *osdc,
u64 off, u64 len,
u32 truncate_seq, u64 truncate_size,
struct timespec *mtime,
struct page **pages, int nr_pages,
int flags, int do_sync, bool nofail);
struct page **pages, int nr_pages);
/* watch/notify events */
extern int ceph_osdc_create_event(struct ceph_osd_client *osdc,
void (*event_cb)(u64, u64, u8, void *),
int one_shot, void *data,
struct ceph_osd_event **pevent);
void *data, struct ceph_osd_event **pevent);
extern void ceph_osdc_cancel_event(struct ceph_osd_event *event);
extern int ceph_osdc_wait_event(struct ceph_osd_event *event,
unsigned long timeout);
extern void ceph_osdc_put_event(struct ceph_osd_event *event);
#endif

2
include/linux/ceph/osdmap.h
View File

@ -110,7 +110,7 @@ extern void ceph_osdmap_destroy(struct ceph_osdmap *map);
/* calculate mapping of a file extent to an object */
extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
u64 off, u64 *plen,
u64 off, u64 len,
u64 *bno, u64 *oxoff, u64 *oxlen);
/* calculate mapping of object to a placement group */

93
include/linux/ceph/rados.h
View File

@ -145,8 +145,12 @@ struct ceph_eversion {
*/
/* status bits */
#define CEPH_OSD_EXISTS 1
#define CEPH_OSD_UP 2
#define CEPH_OSD_EXISTS (1<<0)
#define CEPH_OSD_UP (1<<1)
#define CEPH_OSD_AUTOOUT (1<<2) /* osd was automatically marked out */
#define CEPH_OSD_NEW (1<<3) /* osd is new, never marked in */
extern const char *ceph_osd_state_name(int s);
/* osd weights. fixed point value: 0x10000 == 1.0 ("in"), 0 == "out" */
#define CEPH_OSD_IN 0x10000
@ -161,9 +165,25 @@ struct ceph_eversion {
#define CEPH_OSDMAP_PAUSERD (1<<2) /* pause all reads */
#define CEPH_OSDMAP_PAUSEWR (1<<3) /* pause all writes */
#define CEPH_OSDMAP_PAUSEREC (1<<4) /* pause recovery */
#define CEPH_OSDMAP_NOUP (1<<5) /* block osd boot */
#define CEPH_OSDMAP_NODOWN (1<<6) /* block osd mark-down/failure */
#define CEPH_OSDMAP_NOOUT (1<<7) /* block osd auto mark-out */
#define CEPH_OSDMAP_NOIN (1<<8) /* block osd auto mark-in */
#define CEPH_OSDMAP_NOBACKFILL (1<<9) /* block osd backfill */
#define CEPH_OSDMAP_NORECOVER (1<<10) /* block osd recovery and backfill */
/*
* The error code to return when an OSD can't handle a write
* because it is too large.
*/
#define OSD_WRITETOOBIG EMSGSIZE
/*
* osd ops
*
* WARNING: do not use these op codes directly. Use the helpers
* defined below instead. In certain cases, op code behavior was
* redefined, resulting in special-cases in the helpers.
*/
#define CEPH_OSD_OP_MODE 0xf000
#define CEPH_OSD_OP_MODE_RD 0x1000
@ -177,6 +197,7 @@ struct ceph_eversion {
#define CEPH_OSD_OP_TYPE_ATTR 0x0300
#define CEPH_OSD_OP_TYPE_EXEC 0x0400
#define CEPH_OSD_OP_TYPE_PG 0x0500
#define CEPH_OSD_OP_TYPE_MULTI 0x0600 /* multiobject */
enum {
/** data **/
@ -217,6 +238,23 @@ enum {
CEPH_OSD_OP_WATCH = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 15,
/* omap */
CEPH_OSD_OP_OMAPGETKEYS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 17,
CEPH_OSD_OP_OMAPGETVALS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 18,
CEPH_OSD_OP_OMAPGETHEADER = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 19,
CEPH_OSD_OP_OMAPGETVALSBYKEYS =
CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 20,
CEPH_OSD_OP_OMAPSETVALS = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 21,
CEPH_OSD_OP_OMAPSETHEADER = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 22,
CEPH_OSD_OP_OMAPCLEAR = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 23,
CEPH_OSD_OP_OMAPRMKEYS = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_DATA | 24,
CEPH_OSD_OP_OMAP_CMP = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_DATA | 25,
/** multi **/
CEPH_OSD_OP_CLONERANGE = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_MULTI | 1,
CEPH_OSD_OP_ASSERT_SRC_VERSION = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_MULTI | 2,
CEPH_OSD_OP_SRC_CMPXATTR = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_MULTI | 3,
/** attrs **/
/* read */
CEPH_OSD_OP_GETXATTR = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_ATTR | 1,
@ -238,6 +276,7 @@ enum {
CEPH_OSD_OP_SCRUB_RESERVE = CEPH_OSD_OP_MODE_SUB | 6,
CEPH_OSD_OP_SCRUB_UNRESERVE = CEPH_OSD_OP_MODE_SUB | 7,
CEPH_OSD_OP_SCRUB_STOP = CEPH_OSD_OP_MODE_SUB | 8,
CEPH_OSD_OP_SCRUB_MAP = CEPH_OSD_OP_MODE_SUB | 9,
/** lock **/
CEPH_OSD_OP_WRLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 1,
@ -248,10 +287,12 @@ enum {
CEPH_OSD_OP_DNLOCK = CEPH_OSD_OP_MODE_WR | CEPH_OSD_OP_TYPE_LOCK | 6,
/** exec **/
/* note: the RD bit here is wrong; see special-case below in helper */
CEPH_OSD_OP_CALL = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_EXEC | 1,
/** pg **/
CEPH_OSD_OP_PGLS = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_PG | 1,
CEPH_OSD_OP_PGLS_FILTER = CEPH_OSD_OP_MODE_RD | CEPH_OSD_OP_TYPE_PG | 2,
};
static inline int ceph_osd_op_type_lock(int op)
@ -274,6 +315,10 @@ static inline int ceph_osd_op_type_pg(int op)
{
return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_PG;
}
static inline int ceph_osd_op_type_multi(int op)
{
return (op & CEPH_OSD_OP_TYPE) == CEPH_OSD_OP_TYPE_MULTI;
}
static inline int ceph_osd_op_mode_subop(int op)
{
@ -281,11 +326,12 @@ static inline int ceph_osd_op_mode_subop(int op)
}
static inline int ceph_osd_op_mode_read(int op)
{
return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_RD;
return (op & CEPH_OSD_OP_MODE_RD) &&
op != CEPH_OSD_OP_CALL;
}
static inline int ceph_osd_op_mode_modify(int op)
{
return (op & CEPH_OSD_OP_MODE) == CEPH_OSD_OP_MODE_WR;
return op & CEPH_OSD_OP_MODE_WR;
}
/*
@ -294,34 +340,38 @@ static inline int ceph_osd_op_mode_modify(int op)
*/
#define CEPH_OSD_TMAP_HDR 'h'
#define CEPH_OSD_TMAP_SET 's'
#define CEPH_OSD_TMAP_CREATE 'c' /* create key */
#define CEPH_OSD_TMAP_RM 'r'
#define CEPH_OSD_TMAP_RMSLOPPY 'R'
extern const char *ceph_osd_op_name(int op);
/*
* osd op flags
*
* An op may be READ, WRITE, or READ|WRITE.
*/
enum {
CEPH_OSD_FLAG_ACK = 1, /* want (or is) "ack" ack */
CEPH_OSD_FLAG_ONNVRAM = 2, /* want (or is) "onnvram" ack */
CEPH_OSD_FLAG_ONDISK = 4, /* want (or is) "ondisk" ack */
CEPH_OSD_FLAG_RETRY = 8, /* resend attempt */
CEPH_OSD_FLAG_READ = 16, /* op may read */
CEPH_OSD_FLAG_WRITE = 32, /* op may write */
CEPH_OSD_FLAG_ORDERSNAP = 64, /* EOLDSNAP if snapc is out of order */
CEPH_OSD_FLAG_PEERSTAT = 128, /* msg includes osd_peer_stat */
CEPH_OSD_FLAG_BALANCE_READS = 256,
CEPH_OSD_FLAG_PARALLELEXEC = 512, /* execute op in parallel */
CEPH_OSD_FLAG_PGOP = 1024, /* pg op, no object */
CEPH_OSD_FLAG_EXEC = 2048, /* op may exec */
CEPH_OSD_FLAG_EXEC_PUBLIC = 4096, /* op may exec (public) */
CEPH_OSD_FLAG_ACK = 0x0001, /* want (or is) "ack" ack */
CEPH_OSD_FLAG_ONNVRAM = 0x0002, /* want (or is) "onnvram" ack */
CEPH_OSD_FLAG_ONDISK = 0x0004, /* want (or is) "ondisk" ack */
CEPH_OSD_FLAG_RETRY = 0x0008, /* resend attempt */
CEPH_OSD_FLAG_READ = 0x0010, /* op may read */
CEPH_OSD_FLAG_WRITE = 0x0020, /* op may write */
CEPH_OSD_FLAG_ORDERSNAP = 0x0040, /* EOLDSNAP if snapc is out of order */
CEPH_OSD_FLAG_PEERSTAT_OLD = 0x0080, /* DEPRECATED msg includes osd_peer_stat */
CEPH_OSD_FLAG_BALANCE_READS = 0x0100,
CEPH_OSD_FLAG_PARALLELEXEC = 0x0200, /* execute op in parallel */
CEPH_OSD_FLAG_PGOP = 0x0400, /* pg op, no object */
CEPH_OSD_FLAG_EXEC = 0x0800, /* op may exec */
CEPH_OSD_FLAG_EXEC_PUBLIC = 0x1000, /* DEPRECATED op may exec (public) */
CEPH_OSD_FLAG_LOCALIZE_READS = 0x2000, /* read from nearby replica, if any */
CEPH_OSD_FLAG_RWORDERED = 0x4000, /* order wrt concurrent reads */
};
enum {
CEPH_OSD_OP_FLAG_EXCL = 1, /* EXCL object create */
CEPH_OSD_OP_FLAG_FAILOK = 2, /* continue despite failure */
};
#define EOLDSNAPC ERESTART /* ORDERSNAP flag set; writer has old snapc*/
@ -381,7 +431,11 @@ struct ceph_osd_op {
__le64 ver;
__u8 flag; /* 0 = unwatch, 1 = watch */
} __attribute__ ((packed)) watch;
};
struct {
__le64 offset, length;
__le64 src_offset;
} __attribute__ ((packed)) clonerange;
};
__le32 payload_len;
} __attribute__ ((packed));
@ -424,5 +478,4 @@ struct ceph_osd_reply_head {
} __attribute__ ((packed));
#endif

2
include/linux/crush/crush.h
View File

@ -162,6 +162,8 @@ struct crush_map {
__u32 choose_local_fallback_tries;
/* choose attempts before giving up */
__u32 choose_total_tries;
/* attempt chooseleaf inner descent once; on failure retry outer descent */
__u32 chooseleaf_descend_once;
};

16
net/ceph/ceph_common.c
View File

@ -26,6 +26,22 @@
#include "crypto.h"
/*
* Module compatibility interface. For now it doesn't do anything,
* but its existence signals a certain level of functionality.
*
* The data buffer is used to pass information both to and from
* libceph. The return value indicates whether libceph determines
* it is compatible with the caller (from another kernel module),
* given the provided data.
*
* The data pointer can be null.
*/
bool libceph_compatible(void *data)
{
return true;
}
EXPORT_SYMBOL(libceph_compatible);
/*
* find filename portion of a path (/foo/bar/baz -> baz)

39
net/ceph/ceph_strings.c
View File

@ -21,9 +21,15 @@ const char *ceph_osd_op_name(int op)
switch (op) {
case CEPH_OSD_OP_READ: return "read";
case CEPH_OSD_OP_STAT: return "stat";
case CEPH_OSD_OP_MAPEXT: return "mapext";
case CEPH_OSD_OP_SPARSE_READ: return "sparse-read";
case CEPH_OSD_OP_NOTIFY: return "notify";
case CEPH_OSD_OP_NOTIFY_ACK: return "notify-ack";
case CEPH_OSD_OP_ASSERT_VER: return "assert-version";
case CEPH_OSD_OP_MASKTRUNC: return "masktrunc";
case CEPH_OSD_OP_CREATE: return "create";
case CEPH_OSD_OP_WRITE: return "write";
case CEPH_OSD_OP_DELETE: return "delete";
case CEPH_OSD_OP_TRUNCATE: return "truncate";
@ -39,6 +45,11 @@ const char *ceph_osd_op_name(int op)
case CEPH_OSD_OP_TMAPUP: return "tmapup";
case CEPH_OSD_OP_TMAPGET: return "tmapget";
case CEPH_OSD_OP_TMAPPUT: return "tmapput";
case CEPH_OSD_OP_WATCH: return "watch";
case CEPH_OSD_OP_CLONERANGE: return "clonerange";
case CEPH_OSD_OP_ASSERT_SRC_VERSION: return "assert-src-version";
case CEPH_OSD_OP_SRC_CMPXATTR: return "src-cmpxattr";
case CEPH_OSD_OP_GETXATTR: return "getxattr";
case CEPH_OSD_OP_GETXATTRS: return "getxattrs";
@ -53,6 +64,10 @@ const char *ceph_osd_op_name(int op)
case CEPH_OSD_OP_BALANCEREADS: return "balance-reads";
case CEPH_OSD_OP_UNBALANCEREADS: return "unbalance-reads";
case CEPH_OSD_OP_SCRUB: return "scrub";
case CEPH_OSD_OP_SCRUB_RESERVE: return "scrub-reserve";
case CEPH_OSD_OP_SCRUB_UNRESERVE: return "scrub-unreserve";
case CEPH_OSD_OP_SCRUB_STOP: return "scrub-stop";
case CEPH_OSD_OP_SCRUB_MAP: return "scrub-map";
case CEPH_OSD_OP_WRLOCK: return "wrlock";
case CEPH_OSD_OP_WRUNLOCK: return "wrunlock";
@ -64,10 +79,34 @@ const char *ceph_osd_op_name(int op)
case CEPH_OSD_OP_CALL: return "call";
case CEPH_OSD_OP_PGLS: return "pgls";
case CEPH_OSD_OP_PGLS_FILTER: return "pgls-filter";
case CEPH_OSD_OP_OMAPGETKEYS: return "omap-get-keys";
case CEPH_OSD_OP_OMAPGETVALS: return "omap-get-vals";
case CEPH_OSD_OP_OMAPGETHEADER: return "omap-get-header";
case CEPH_OSD_OP_OMAPGETVALSBYKEYS: return "omap-get-vals-by-keys";
case CEPH_OSD_OP_OMAPSETVALS: return "omap-set-vals";
case CEPH_OSD_OP_OMAPSETHEADER: return "omap-set-header";
case CEPH_OSD_OP_OMAPCLEAR: return "omap-clear";
case CEPH_OSD_OP_OMAPRMKEYS: return "omap-rm-keys";
}
return "???";
}
const char *ceph_osd_state_name(int s)
{
switch (s) {
case CEPH_OSD_EXISTS:
return "exists";
case CEPH_OSD_UP:
return "up";
case CEPH_OSD_AUTOOUT:
return "autoout";
case CEPH_OSD_NEW:
return "new";
default:
return "???";
}
}
const char *ceph_pool_op_name(int op)
{

15
net/ceph/crush/mapper.c
View File

@ -287,6 +287,7 @@ static int is_out(const struct crush_map *map, const __u32 *weight, int item, in
* @outpos: our position in that vector
* @firstn: true if choosing "first n" items, false if choosing "indep"
* @recurse_to_leaf: true if we want one device under each item of given type
* @descend_once: true if we should only try one descent before giving up
* @out2: second output vector for leaf items (if @recurse_to_leaf)
*/
static int crush_choose(const struct crush_map *map,
@ -295,7 +296,7 @@ static int crush_choose(const struct crush_map *map,
int x, int numrep, int type,
int *out, int outpos,
int firstn, int recurse_to_leaf,
int *out2)
int descend_once, int *out2)
{
int rep;
unsigned int ftotal, flocal;
@ -391,7 +392,7 @@ static int crush_choose(const struct crush_map *map,
}
reject = 0;
if (recurse_to_leaf) {
if (!collide && recurse_to_leaf) {
if (item < 0) {
if (crush_choose(map,
map->buckets[-1-item],
@ -399,6 +400,7 @@ static int crush_choose(const struct crush_map *map,
x, outpos+1, 0,
out2, outpos,
firstn, 0,
map->chooseleaf_descend_once,
NULL) <= outpos)
/* didn't get leaf */
reject = 1;
@ -422,7 +424,10 @@ reject:
ftotal++;
flocal++;
if (collide && flocal <= map->choose_local_tries)
if (reject && descend_once)
/* let outer call try again */
skip_rep = 1;
else if (collide && flocal <= map->choose_local_tries)
/* retry locally a few times */
retry_bucket = 1;
else if (map->choose_local_fallback_tries > 0 &&
@ -485,6 +490,7 @@ int crush_do_rule(const struct crush_map *map,
int i, j;
int numrep;
int firstn;
const int descend_once = 0;
if ((__u32)ruleno >= map->max_rules) {
dprintk(" bad ruleno %d\n", ruleno);
@ -544,7 +550,8 @@ int crush_do_rule(const struct crush_map *map,
curstep->arg2,
o+osize, j,
firstn,
recurse_to_leaf, c+osize);
recurse_to_leaf,
descend_once, c+osize);
}
if (recurse_to_leaf)

5
net/ceph/messenger.c
View File

@ -9,8 +9,9 @@
#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/string.h>
#ifdef CONFIG_BLOCK
#include <linux/bio.h>
#include <linux/blkdev.h>
#endif /* CONFIG_BLOCK */
#include <linux/dns_resolver.h>
#include <net/tcp.h>
@ -2651,9 +2652,11 @@ struct ceph_msg *ceph_msg_new(int type, int front_len, gfp_t flags,
m->page_alignment = 0;
m->pages = NULL;
m->pagelist = NULL;
#ifdef CONFIG_BLOCK
m->bio = NULL;
m->bio_iter = NULL;
m->bio_seg = 0;
#endif /* CONFIG_BLOCK */
m->trail = NULL;
/* front */

416
net/ceph/osd_client.c
View File

@ -23,7 +23,7 @@
static const struct ceph_connection_operations osd_con_ops;
static void send_queued(struct ceph_osd_client *osdc);
static void __send_queued(struct ceph_osd_client *osdc);
static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd);
static void __register_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req);
@ -32,64 +32,12 @@ static void __unregister_linger_request(struct ceph_osd_client *osdc,
static void __send_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req);
static int op_needs_trail(int op)
{
switch (op) {
case CEPH_OSD_OP_GETXATTR:
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_CMPXATTR:
case CEPH_OSD_OP_CALL:
case CEPH_OSD_OP_NOTIFY:
return 1;
default:
return 0;
}
}
static int op_has_extent(int op)
{
return (op == CEPH_OSD_OP_READ ||
op == CEPH_OSD_OP_WRITE);
}
int ceph_calc_raw_layout(struct ceph_osd_client *osdc,
struct ceph_file_layout *layout,
u64 snapid,
u64 off, u64 *plen, u64 *bno,
struct ceph_osd_request *req,
struct ceph_osd_req_op *op)
{
struct ceph_osd_request_head *reqhead = req->r_request->front.iov_base;
u64 orig_len = *plen;
u64 objoff, objlen; /* extent in object */
int r;
reqhead->snapid = cpu_to_le64(snapid);
/* object extent? */
r = ceph_calc_file_object_mapping(layout, off, plen, bno,
&objoff, &objlen);
if (r < 0)
return r;
if (*plen < orig_len)
dout(" skipping last %llu, final file extent %llu~%llu\n",
orig_len - *plen, off, *plen);
if (op_has_extent(op->op)) {
op->extent.offset = objoff;
op->extent.length = objlen;
}
req->r_num_pages = calc_pages_for(off, *plen);
req->r_page_alignment = off & ~PAGE_MASK;
if (op->op == CEPH_OSD_OP_WRITE)
op->payload_len = *plen;
dout("calc_layout bno=%llx %llu~%llu (%d pages)\n",
*bno, objoff, objlen, req->r_num_pages);
return 0;
}
EXPORT_SYMBOL(ceph_calc_raw_layout);
/*
* Implement client access to distributed object storage cluster.
*
@ -115,20 +63,48 @@ EXPORT_SYMBOL(ceph_calc_raw_layout);
*
* fill osd op in request message.
*/
static int calc_layout(struct ceph_osd_client *osdc,
struct ceph_vino vino,
static int calc_layout(struct ceph_vino vino,
struct ceph_file_layout *layout,
u64 off, u64 *plen,
struct ceph_osd_request *req,
struct ceph_osd_req_op *op)
{
u64 bno;
u64 orig_len = *plen;
u64 bno = 0;
u64 objoff = 0;
u64 objlen = 0;
int r;
r = ceph_calc_raw_layout(osdc, layout, vino.snap, off,
plen, &bno, req, op);
/* object extent? */
r = ceph_calc_file_object_mapping(layout, off, orig_len, &bno,
&objoff, &objlen);
if (r < 0)
return r;
if (objlen < orig_len) {
*plen = objlen;
dout(" skipping last %llu, final file extent %llu~%llu\n",
orig_len - *plen, off, *plen);
}
if (op_has_extent(op->op)) {
u32 osize = le32_to_cpu(layout->fl_object_size);
op->extent.offset = objoff;
op->extent.length = objlen;
if (op->extent.truncate_size <= off - objoff) {
op->extent.truncate_size = 0;
} else {
op->extent.truncate_size -= off - objoff;
if (op->extent.truncate_size > osize)
op->extent.truncate_size = osize;
}
}
req->r_num_pages = calc_pages_for(off, *plen);
req->r_page_alignment = off & ~PAGE_MASK;
if (op->op == CEPH_OSD_OP_WRITE)
op->payload_len = *plen;
dout("calc_layout bno=%llx %llu~%llu (%d pages)\n",
bno, objoff, objlen, req->r_num_pages);
snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno);
req->r_oid_len = strlen(req->r_oid);
@ -148,25 +124,19 @@ void ceph_osdc_release_request(struct kref *kref)
if (req->r_request)
ceph_msg_put(req->r_request);
if (req->r_con_filling_msg) {
dout("%s revoking pages %p from con %p\n", __func__,
req->r_pages, req->r_con_filling_msg);
dout("%s revoking msg %p from con %p\n", __func__,
req->r_reply, req->r_con_filling_msg);
ceph_msg_revoke_incoming(req->r_reply);
req->r_con_filling_msg->ops->put(req->r_con_filling_msg);
req->r_con_filling_msg = NULL;
}
if (req->r_reply)
ceph_msg_put(req->r_reply);
if (req->r_own_pages)
ceph_release_page_vector(req->r_pages,
req->r_num_pages);
#ifdef CONFIG_BLOCK
if (req->r_bio)
bio_put(req->r_bio);
#endif
ceph_put_snap_context(req->r_snapc);
if (req->r_trail) {
ceph_pagelist_release(req->r_trail);
kfree(req->r_trail);
}
ceph_pagelist_release(&req->r_trail);
if (req->r_mempool)
mempool_free(req, req->r_osdc->req_mempool);
else
@ -174,34 +144,14 @@ void ceph_osdc_release_request(struct kref *kref)
}
EXPORT_SYMBOL(ceph_osdc_release_request);
static int get_num_ops(struct ceph_osd_req_op *ops, int *needs_trail)
{
int i = 0;
if (needs_trail)
*needs_trail = 0;
while (ops[i].op) {
if (needs_trail && op_needs_trail(ops[i].op))
*needs_trail = 1;
i++;
}
return i;
}
struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
int flags,
struct ceph_snap_context *snapc,
struct ceph_osd_req_op *ops,
unsigned int num_op,
bool use_mempool,
gfp_t gfp_flags,
struct page **pages,
struct bio *bio)
gfp_t gfp_flags)
{
struct ceph_osd_request *req;
struct ceph_msg *msg;
int needs_trail;
int num_op = get_num_ops(ops, &needs_trail);
size_t msg_size = sizeof(struct ceph_osd_request_head);
msg_size += num_op*sizeof(struct ceph_osd_op);
@ -228,10 +178,6 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
INIT_LIST_HEAD(&req->r_req_lru_item);
INIT_LIST_HEAD(&req->r_osd_item);
req->r_flags = flags;
WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0);
/* create reply message */
if (use_mempool)
msg = ceph_msgpool_get(&osdc->msgpool_op_reply, 0);
@ -244,15 +190,7 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
}
req->r_reply = msg;
/* allocate space for the trailing data */
if (needs_trail) {
req->r_trail = kmalloc(sizeof(struct ceph_pagelist), gfp_flags);
if (!req->r_trail) {
ceph_osdc_put_request(req);
return NULL;
}
ceph_pagelist_init(req->r_trail);
}
ceph_pagelist_init(&req->r_trail);
/* create request message; allow space for oid */
msg_size += MAX_OBJ_NAME_SIZE;
@ -270,13 +208,6 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc,
memset(msg->front.iov_base, 0, msg->front.iov_len);
req->r_request = msg;
req->r_pages = pages;
#ifdef CONFIG_BLOCK
if (bio) {
req->r_bio = bio;
bio_get(req->r_bio);
}
#endif
return req;
}
@ -289,6 +220,8 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
dst->op = cpu_to_le16(src->op);
switch (src->op) {
case CEPH_OSD_OP_STAT:
break;
case CEPH_OSD_OP_READ:
case CEPH_OSD_OP_WRITE:
dst->extent.offset =
@ -300,52 +233,20 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
dst->extent.truncate_seq =
cpu_to_le32(src->extent.truncate_seq);
break;
case CEPH_OSD_OP_GETXATTR:
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_CMPXATTR:
BUG_ON(!req->r_trail);
dst->xattr.name_len = cpu_to_le32(src->xattr.name_len);
dst->xattr.value_len = cpu_to_le32(src->xattr.value_len);
dst->xattr.cmp_op = src->xattr.cmp_op;
dst->xattr.cmp_mode = src->xattr.cmp_mode;
ceph_pagelist_append(req->r_trail, src->xattr.name,
src->xattr.name_len);
ceph_pagelist_append(req->r_trail, src->xattr.val,
src->xattr.value_len);
break;
case CEPH_OSD_OP_CALL:
BUG_ON(!req->r_trail);
dst->cls.class_len = src->cls.class_len;
dst->cls.method_len = src->cls.method_len;
dst->cls.indata_len = cpu_to_le32(src->cls.indata_len);
ceph_pagelist_append(req->r_trail, src->cls.class_name,
ceph_pagelist_append(&req->r_trail, src->cls.class_name,
src->cls.class_len);
ceph_pagelist_append(req->r_trail, src->cls.method_name,
ceph_pagelist_append(&req->r_trail, src->cls.method_name,
src->cls.method_len);
ceph_pagelist_append(req->r_trail, src->cls.indata,
ceph_pagelist_append(&req->r_trail, src->cls.indata,
src->cls.indata_len);
break;
case CEPH_OSD_OP_ROLLBACK:
dst->snap.snapid = cpu_to_le64(src->snap.snapid);
break;
case CEPH_OSD_OP_STARTSYNC:
break;
case CEPH_OSD_OP_NOTIFY:
{
__le32 prot_ver = cpu_to_le32(src->watch.prot_ver);
__le32 timeout = cpu_to_le32(src->watch.timeout);
BUG_ON(!req->r_trail);
ceph_pagelist_append(req->r_trail,
&prot_ver, sizeof(prot_ver));
ceph_pagelist_append(req->r_trail,
&timeout, sizeof(timeout));
}
case CEPH_OSD_OP_NOTIFY_ACK:
case CEPH_OSD_OP_WATCH:
dst->watch.cookie = cpu_to_le64(src->watch.cookie);
@ -356,6 +257,64 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
pr_err("unrecognized osd opcode %d\n", dst->op);
WARN_ON(1);
break;
case CEPH_OSD_OP_MAPEXT:
case CEPH_OSD_OP_MASKTRUNC:
case CEPH_OSD_OP_SPARSE_READ:
case CEPH_OSD_OP_NOTIFY:
case CEPH_OSD_OP_ASSERT_VER:
case CEPH_OSD_OP_WRITEFULL:
case CEPH_OSD_OP_TRUNCATE:
case CEPH_OSD_OP_ZERO:
case CEPH_OSD_OP_DELETE:
case CEPH_OSD_OP_APPEND:
case CEPH_OSD_OP_SETTRUNC:
case CEPH_OSD_OP_TRIMTRUNC:
case CEPH_OSD_OP_TMAPUP:
case CEPH_OSD_OP_TMAPPUT:
case CEPH_OSD_OP_TMAPGET:
case CEPH_OSD_OP_CREATE:
case CEPH_OSD_OP_ROLLBACK:
case CEPH_OSD_OP_OMAPGETKEYS:
case CEPH_OSD_OP_OMAPGETVALS:
case CEPH_OSD_OP_OMAPGETHEADER:
case CEPH_OSD_OP_OMAPGETVALSBYKEYS:
case CEPH_OSD_OP_MODE_RD:
case CEPH_OSD_OP_OMAPSETVALS:
case CEPH_OSD_OP_OMAPSETHEADER:
case CEPH_OSD_OP_OMAPCLEAR:
case CEPH_OSD_OP_OMAPRMKEYS:
case CEPH_OSD_OP_OMAP_CMP:
case CEPH_OSD_OP_CLONERANGE:
case CEPH_OSD_OP_ASSERT_SRC_VERSION:
case CEPH_OSD_OP_SRC_CMPXATTR:
case CEPH_OSD_OP_GETXATTR:
case CEPH_OSD_OP_GETXATTRS:
case CEPH_OSD_OP_CMPXATTR:
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_SETXATTRS:
case CEPH_OSD_OP_RESETXATTRS:
case CEPH_OSD_OP_RMXATTR:
case CEPH_OSD_OP_PULL:
case CEPH_OSD_OP_PUSH:
case CEPH_OSD_OP_BALANCEREADS:
case CEPH_OSD_OP_UNBALANCEREADS:
case CEPH_OSD_OP_SCRUB:
case CEPH_OSD_OP_SCRUB_RESERVE:
case CEPH_OSD_OP_SCRUB_UNRESERVE:
case CEPH_OSD_OP_SCRUB_STOP:
case CEPH_OSD_OP_SCRUB_MAP:
case CEPH_OSD_OP_WRLOCK:
case CEPH_OSD_OP_WRUNLOCK:
case CEPH_OSD_OP_RDLOCK:
case CEPH_OSD_OP_RDUNLOCK:
case CEPH_OSD_OP_UPLOCK:
case CEPH_OSD_OP_DNLOCK:
case CEPH_OSD_OP_PGLS:
case CEPH_OSD_OP_PGLS_FILTER:
pr_err("unsupported osd opcode %s\n",
ceph_osd_op_name(dst->op));
WARN_ON(1);
break;
}
dst->payload_len = cpu_to_le32(src->payload_len);
}
@ -365,25 +324,25 @@ static void osd_req_encode_op(struct ceph_osd_request *req,
*
*/
void ceph_osdc_build_request(struct ceph_osd_request *req,
u64 off, u64 *plen,
u64 off, u64 len, unsigned int num_op,
struct ceph_osd_req_op *src_ops,
struct ceph_snap_context *snapc,
struct timespec *mtime,
const char *oid,
int oid_len)
struct ceph_snap_context *snapc, u64 snap_id,
struct timespec *mtime)
{
struct ceph_msg *msg = req->r_request;
struct ceph_osd_request_head *head;
struct ceph_osd_req_op *src_op;
struct ceph_osd_op *op;
void *p;
int num_op = get_num_ops(src_ops, NULL);
size_t msg_size = sizeof(*head) + num_op*sizeof(*op);
int flags = req->r_flags;
u64 data_len = 0;
u64 data_len;
int i;
WARN_ON((flags & (CEPH_OSD_FLAG_READ|CEPH_OSD_FLAG_WRITE)) == 0);
head = msg->front.iov_base;
head->snapid = cpu_to_le64(snap_id);
op = (void *)(head + 1);
p = (void *)(op + num_op);
@ -393,23 +352,17 @@ void ceph_osdc_build_request(struct ceph_osd_request *req,
head->flags = cpu_to_le32(flags);
if (flags & CEPH_OSD_FLAG_WRITE)
ceph_encode_timespec(&head->mtime, mtime);
BUG_ON(num_op > (unsigned int) ((u16) -1));
head->num_ops = cpu_to_le16(num_op);
/* fill in oid */
head->object_len = cpu_to_le32(oid_len);
memcpy(p, oid, oid_len);
p += oid_len;
head->object_len = cpu_to_le32(req->r_oid_len);
memcpy(p, req->r_oid, req->r_oid_len);
p += req->r_oid_len;
src_op = src_ops;
while (src_op->op) {
osd_req_encode_op(req, op, src_op);
src_op++;
op++;
}
if (req->r_trail)
data_len += req->r_trail->length;
while (num_op--)
osd_req_encode_op(req, op++, src_op++);
if (snapc) {
head->snap_seq = cpu_to_le64(snapc->seq);
@ -420,14 +373,12 @@ void ceph_osdc_build_request(struct ceph_osd_request *req,
}
}
data_len = req->r_trail.length;
if (flags & CEPH_OSD_FLAG_WRITE) {
req->r_request->hdr.data_off = cpu_to_le16(off);
req->r_request->hdr.data_len = cpu_to_le32(*plen + data_len);
} else if (data_len) {
req->r_request->hdr.data_off = 0;
req->r_request->hdr.data_len = cpu_to_le32(data_len);
data_len += len;
}
req->r_request->hdr.data_len = cpu_to_le32(data_len);
req->r_request->page_alignment = req->r_page_alignment;
BUG_ON(p > msg->front.iov_base + msg->front.iov_len);
@ -459,34 +410,33 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
u32 truncate_seq,
u64 truncate_size,
struct timespec *mtime,
bool use_mempool, int num_reply,
bool use_mempool,
int page_align)
{
struct ceph_osd_req_op ops[3];
struct ceph_osd_req_op ops[2];
struct ceph_osd_request *req;
unsigned int num_op = 1;
int r;
memset(&ops, 0, sizeof ops);
ops[0].op = opcode;
ops[0].extent.truncate_seq = truncate_seq;
ops[0].extent.truncate_size = truncate_size;
ops[0].payload_len = 0;
if (do_sync) {
ops[1].op = CEPH_OSD_OP_STARTSYNC;
ops[1].payload_len = 0;
ops[2].op = 0;
} else
ops[1].op = 0;
num_op++;
}
req = ceph_osdc_alloc_request(osdc, flags,
snapc, ops,
use_mempool,
GFP_NOFS, NULL, NULL);
req = ceph_osdc_alloc_request(osdc, snapc, num_op, use_mempool,
GFP_NOFS);
if (!req)
return ERR_PTR(-ENOMEM);
req->r_flags = flags;
/* calculate max write size */
r = calc_layout(osdc, vino, layout, off, plen, req, ops);
r = calc_layout(vino, layout, off, plen, req, ops);
if (r < 0)
return ERR_PTR(r);
req->r_file_layout = *layout; /* keep a copy */
@ -496,10 +446,8 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
req->r_num_pages = calc_pages_for(page_align, *plen);
req->r_page_alignment = page_align;
ceph_osdc_build_request(req, off, plen, ops,
snapc,
mtime,
req->r_oid, req->r_oid_len);
ceph_osdc_build_request(req, off, *plen, num_op, ops,
snapc, vino.snap, mtime);
return req;
}
@ -623,8 +571,8 @@ static void osd_reset(struct ceph_connection *con)
down_read(&osdc->map_sem);
mutex_lock(&osdc->request_mutex);
__kick_osd_requests(osdc, osd);
__send_queued(osdc);
mutex_unlock(&osdc->request_mutex);
send_queued(osdc);
up_read(&osdc->map_sem);
}
@ -739,31 +687,35 @@ static void remove_old_osds(struct ceph_osd_client *osdc)
*/
static int __reset_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
{
struct ceph_osd_request *req;
int ret = 0;
struct ceph_entity_addr *peer_addr;
dout("__reset_osd %p osd%d\n", osd, osd->o_osd);
if (list_empty(&osd->o_requests) &&
list_empty(&osd->o_linger_requests)) {
__remove_osd(osdc, osd);
ret = -ENODEV;
} else if (memcmp(&osdc->osdmap->osd_addr[osd->o_osd],
&osd->o_con.peer_addr,
sizeof(osd->o_con.peer_addr)) == 0 &&
!ceph_con_opened(&osd->o_con)) {
return -ENODEV;
}
peer_addr = &osdc->osdmap->osd_addr[osd->o_osd];
if (!memcmp(peer_addr, &osd->o_con.peer_addr, sizeof (*peer_addr)) &&
!ceph_con_opened(&osd->o_con)) {
struct ceph_osd_request *req;
dout(" osd addr hasn't changed and connection never opened,"
" letting msgr retry");
/* touch each r_stamp for handle_timeout()'s benfit */
list_for_each_entry(req, &osd->o_requests, r_osd_item)
req->r_stamp = jiffies;
ret = -EAGAIN;
} else {
ceph_con_close(&osd->o_con);
ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd,
&osdc->osdmap->osd_addr[osd->o_osd]);
osd->o_incarnation++;
return -EAGAIN;
}
return ret;
ceph_con_close(&osd->o_con);
ceph_con_open(&osd->o_con, CEPH_ENTITY_TYPE_OSD, osd->o_osd, peer_addr);
osd->o_incarnation++;
return 0;
}
static void __insert_osd(struct ceph_osd_client *osdc, struct ceph_osd *new)
@ -1062,16 +1014,13 @@ static void __send_request(struct ceph_osd_client *osdc,
/*
* Send any requests in the queue (req_unsent).
*/
static void send_queued(struct ceph_osd_client *osdc)
static void __send_queued(struct ceph_osd_client *osdc)
{
struct ceph_osd_request *req, *tmp;
dout("send_queued\n");
mutex_lock(&osdc->request_mutex);
list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item) {
dout("__send_queued\n");
list_for_each_entry_safe(req, tmp, &osdc->req_unsent, r_req_lru_item)
__send_request(osdc, req);
}
mutex_unlock(&osdc->request_mutex);
}
/*
@ -1123,8 +1072,8 @@ static void handle_timeout(struct work_struct *work)
}
__schedule_osd_timeout(osdc);
__send_queued(osdc);
mutex_unlock(&osdc->request_mutex);
send_queued(osdc);
up_read(&osdc->map_sem);
}
@ -1462,7 +1411,9 @@ done:
if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL))
ceph_monc_request_next_osdmap(&osdc->client->monc);
send_queued(osdc);
mutex_lock(&osdc->request_mutex);
__send_queued(osdc);
mutex_unlock(&osdc->request_mutex);
up_read(&osdc->map_sem);
wake_up_all(&osdc->client->auth_wq);
return;
@ -1556,8 +1507,7 @@ static void __remove_event(struct ceph_osd_event *event)
int ceph_osdc_create_event(struct ceph_osd_client *osdc,
void (*event_cb)(u64, u64, u8, void *),
int one_shot, void *data,
struct ceph_osd_event **pevent)
void *data, struct ceph_osd_event **pevent)
{
struct ceph_osd_event *event;
@ -1567,14 +1517,13 @@ int ceph_osdc_create_event(struct ceph_osd_client *osdc,
dout("create_event %p\n", event);
event->cb = event_cb;
event->one_shot = one_shot;
event->one_shot = 0;
event->data = data;
event->osdc = osdc;
INIT_LIST_HEAD(&event->osd_node);
RB_CLEAR_NODE(&event->node);
kref_init(&event->kref); /* one ref for us */
kref_get(&event->kref); /* one ref for the caller */
init_completion(&event->completion);
spin_lock(&osdc->event_lock);
event->cookie = ++osdc->event_count;
@ -1610,7 +1559,6 @@ static void do_event_work(struct work_struct *work)
dout("do_event_work completing %p\n", event);
event->cb(ver, notify_id, opcode, event->data);
complete(&event->completion);
dout("do_event_work completed %p\n", event);
ceph_osdc_put_event(event);
kfree(event_work);
@ -1620,7 +1568,8 @@ static void do_event_work(struct work_struct *work)
/*
* Process osd watch notifications
*/
void handle_watch_notify(struct ceph_osd_client *osdc, struct ceph_msg *msg)
static void handle_watch_notify(struct ceph_osd_client *osdc,
struct ceph_msg *msg)
{
void *p, *end;
u8 proto_ver;
@ -1641,9 +1590,8 @@ void handle_watch_notify(struct ceph_osd_client *osdc, struct ceph_msg *msg)
spin_lock(&osdc->event_lock);
event = __find_event(osdc, cookie);
if (event) {
BUG_ON(event->one_shot);
get_event(event);
if (event->one_shot)
__remove_event(event);
}
spin_unlock(&osdc->event_lock);
dout("handle_watch_notify cookie %lld ver %lld event %p\n",
@ -1668,7 +1616,6 @@ void handle_watch_notify(struct ceph_osd_client *osdc, struct ceph_msg *msg)
return;
done_err:
complete(&event->completion);
ceph_osdc_put_event(event);
return;
@ -1677,21 +1624,6 @@ bad:
return;
}
int ceph_osdc_wait_event(struct ceph_osd_event *event, unsigned long timeout)
{
int err;
dout("wait_event %p\n", event);
err = wait_for_completion_interruptible_timeout(&event->completion,
timeout * HZ);
ceph_osdc_put_event(event);
if (err > 0)
err = 0;
dout("wait_event %p returns %d\n", event, err);
return err;
}
EXPORT_SYMBOL(ceph_osdc_wait_event);
/*
* Register request, send initial attempt.
*/
@ -1706,7 +1638,7 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
#ifdef CONFIG_BLOCK
req->r_request->bio = req->r_bio;
#endif
req->r_request->trail = req->r_trail;
req->r_request->trail = &req->r_trail;
register_request(osdc, req);
@ -1865,7 +1797,6 @@ out_mempool:
out:
return err;
}
EXPORT_SYMBOL(ceph_osdc_init);
void ceph_osdc_stop(struct ceph_osd_client *osdc)
{
@ -1882,7 +1813,6 @@ void ceph_osdc_stop(struct ceph_osd_client *osdc)
ceph_msgpool_destroy(&osdc->msgpool_op);
ceph_msgpool_destroy(&osdc->msgpool_op_reply);
}
EXPORT_SYMBOL(ceph_osdc_stop);
/*
* Read some contiguous pages. If we cross a stripe boundary, shorten
@ -1902,7 +1832,7 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
req = ceph_osdc_new_request(osdc, layout, vino, off, plen,
CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
NULL, 0, truncate_seq, truncate_size, NULL,
false, 1, page_align);
false, page_align);
if (IS_ERR(req))
return PTR_ERR(req);
@ -1931,8 +1861,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
u64 off, u64 len,
u32 truncate_seq, u64 truncate_size,
struct timespec *mtime,
struct page **pages, int num_pages,
int flags, int do_sync, bool nofail)
struct page **pages, int num_pages)
{
struct ceph_osd_request *req;
int rc = 0;
@ -1941,11 +1870,10 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
BUG_ON(vino.snap != CEPH_NOSNAP);
req = ceph_osdc_new_request(osdc, layout, vino, off, &len,
CEPH_OSD_OP_WRITE,
flags | CEPH_OSD_FLAG_ONDISK |
CEPH_OSD_FLAG_WRITE,
snapc, do_sync,
CEPH_OSD_FLAG_ONDISK | CEPH_OSD_FLAG_WRITE,
snapc, 0,
truncate_seq, truncate_size, mtime,
nofail, 1, page_align);
true, page_align);
if (IS_ERR(req))
return PTR_ERR(req);
@ -1954,7 +1882,7 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
dout("writepages %llu~%llu (%d pages)\n", off, len,
req->r_num_pages);
rc = ceph_osdc_start_request(osdc, req, nofail);
rc = ceph_osdc_start_request(osdc, req, true);
if (!rc)
rc = ceph_osdc_wait_request(osdc, req);
@ -2047,7 +1975,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
if (data_len > 0) {
int want = calc_pages_for(req->r_page_alignment, data_len);
if (unlikely(req->r_num_pages < want)) {
if (req->r_pages && unlikely(req->r_num_pages < want)) {
pr_warning("tid %lld reply has %d bytes %d pages, we"
" had only %d pages ready\n", tid, data_len,
want, req->r_num_pages);

41
net/ceph/osdmap.c
View File

@ -13,26 +13,18 @@
char *ceph_osdmap_state_str(char *str, int len, int state)
{
int flag = 0;
if (!len)
goto done;
return str;
*str = '\0';
if (state) {
if (state & CEPH_OSD_EXISTS) {
snprintf(str, len, "exists");
flag = 1;
}
if (state & CEPH_OSD_UP) {
snprintf(str, len, "%s%s%s", str, (flag ? ", " : ""),
"up");
flag = 1;
}
} else {
if ((state & CEPH_OSD_EXISTS) && (state & CEPH_OSD_UP))
snprintf(str, len, "exists, up");
else if (state & CEPH_OSD_EXISTS)
snprintf(str, len, "exists");
else if (state & CEPH_OSD_UP)
snprintf(str, len, "up");
else
snprintf(str, len, "doesn't exist");
}
done:
return str;
}
@ -170,6 +162,7 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
c->choose_local_tries = 2;
c->choose_local_fallback_tries = 5;
c->choose_total_tries = 19;
c->chooseleaf_descend_once = 0;
ceph_decode_need(p, end, 4*sizeof(u32), bad);
magic = ceph_decode_32(p);
@ -336,6 +329,11 @@ static struct crush_map *crush_decode(void *pbyval, void *end)
dout("crush decode tunable choose_total_tries = %d",
c->choose_total_tries);
ceph_decode_need(p, end, sizeof(u32), done);
c->chooseleaf_descend_once = ceph_decode_32(p);
dout("crush decode tunable chooseleaf_descend_once = %d",
c->chooseleaf_descend_once);
done:
dout("crush_decode success\n");
return c;
@ -1010,7 +1008,7 @@ bad:
* pass a stride back to the caller.
*/
int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
u64 off, u64 *plen,
u64 off, u64 len,
u64 *ono,
u64 *oxoff, u64 *oxlen)
{
@ -1021,7 +1019,7 @@ int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
u32 su_per_object;
u64 t, su_offset;
dout("mapping %llu~%llu osize %u fl_su %u\n", off, *plen,
dout("mapping %llu~%llu osize %u fl_su %u\n", off, len,
osize, su);
if (su == 0 || sc == 0)
goto invalid;
@ -1054,11 +1052,10 @@ int ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
/*
* Calculate the length of the extent being written to the selected
* object. This is the minimum of the full length requested (plen) or
* object. This is the minimum of the full length requested (len) or
* the remainder of the current stripe being written to.
*/
*oxlen = min_t(u64, *plen, su - su_offset);
*plen = *oxlen;
*oxlen = min_t(u64, len, su - su_offset);
dout(" obj extent %llu~%llu\n", *oxoff, *oxlen);
return 0;

24
net/ceph/pagevec.c
View File

@ -12,7 +12,7 @@
/*
* build a vector of user pages
*/
struct page **ceph_get_direct_page_vector(const char __user *data,
struct page **ceph_get_direct_page_vector(const void __user *data,
int num_pages, bool write_page)
{
struct page **pages;
@ -93,7 +93,7 @@ EXPORT_SYMBOL(ceph_alloc_page_vector);
* copy user data into a page vector
*/
int ceph_copy_user_to_page_vector(struct page **pages,
const char __user *data,
const void __user *data,
loff_t off, size_t len)
{
int i = 0;
@ -118,17 +118,17 @@ int ceph_copy_user_to_page_vector(struct page **pages,
}
EXPORT_SYMBOL(ceph_copy_user_to_page_vector);
int ceph_copy_to_page_vector(struct page **pages,
const char *data,
void ceph_copy_to_page_vector(struct page **pages,
const void *data,
loff_t off, size_t len)
{
int i = 0;
size_t po = off & ~PAGE_CACHE_MASK;
size_t left = len;
size_t l;
while (left > 0) {
l = min_t(size_t, PAGE_CACHE_SIZE-po, left);
size_t l = min_t(size_t, PAGE_CACHE_SIZE-po, left);
memcpy(page_address(pages[i]) + po, data, l);
data += l;
left -= l;
@ -138,21 +138,20 @@ int ceph_copy_to_page_vector(struct page **pages,
i++;
}
}
return len;
}
EXPORT_SYMBOL(ceph_copy_to_page_vector);
int ceph_copy_from_page_vector(struct page **pages,
char *data,
void ceph_copy_from_page_vector(struct page **pages,
void *data,
loff_t off, size_t len)
{
int i = 0;
size_t po = off & ~PAGE_CACHE_MASK;
size_t left = len;
size_t l;
while (left > 0) {
l = min_t(size_t, PAGE_CACHE_SIZE-po, left);
size_t l = min_t(size_t, PAGE_CACHE_SIZE-po, left);
memcpy(data, page_address(pages[i]) + po, l);
data += l;
left -= l;
@ -162,7 +161,6 @@ int ceph_copy_from_page_vector(struct page **pages,
i++;
}
}
return len;
}
EXPORT_SYMBOL(ceph_copy_from_page_vector);
@ -170,7 +168,7 @@ EXPORT_SYMBOL(ceph_copy_from_page_vector);
* copy user data from a page vector into a user pointer
*/
int ceph_copy_page_vector_to_user(struct page **pages,
char __user *data,
void __user *data,
loff_t off, size_t len)
{
int i = 0;