readdir_r() to readdir() conversion, various minor cleanups
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEABECAAYFAldVR/QACgkQAvw66wEB28JwVQCgiTy4bpShd9GiFgJ+eoSgJnt5 lLcAn3rnv44g0SpW5M7aK4I8RzyEig0X =vbbR -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into staging readdir_r() to readdir() conversion, various minor cleanups # gpg: Signature made Mon 06 Jun 2016 10:52:52 BST # gpg: using DSA key 0x02FC3AEB0101DBC2 # gpg: Good signature from "Greg Kurz <gkurz@fr.ibm.com>" # gpg: aka "Greg Kurz <groug@free.fr>" # gpg: aka "Greg Kurz <gkurz@linux.vnet.ibm.com>" # gpg: aka "Gregory Kurz (Groug) <groug@free.fr>" # gpg: aka "Gregory Kurz (Cimai Technology) <gkurz@cimai.com>" # gpg: aka "Gregory Kurz (Meiosys Technology) <gkurz@meiosys.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 2BD4 3B44 535E C0A7 9894 DBA2 02FC 3AEB 0101 DBC2 * remotes/gkurz/tags/for-upstream: 9p: switch back to readdir() 9p: add locking to V9fsDir 9p: introduce the V9fsDir type 9p: drop useless out: label 9p: drop useless inclusion of hw/i386/pc.h 9p/fsdev: remove obsolete references to virtio 9p: some more cleanup in #include directives Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
commit
280b2358cd
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@ -1,5 +1,5 @@
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/*
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* Virtio 9p
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* 9p
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*
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* Copyright IBM, Corp. 2010
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*
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@ -118,8 +118,7 @@ struct FileOperations
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int, FsCred *, V9fsFidOpenState *);
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void (*rewinddir)(FsContext *, V9fsFidOpenState *);
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off_t (*telldir)(FsContext *, V9fsFidOpenState *);
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int (*readdir_r)(FsContext *, V9fsFidOpenState *,
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struct dirent *, struct dirent **);
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struct dirent * (*readdir)(FsContext *, V9fsFidOpenState *);
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void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t);
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ssize_t (*preadv)(FsContext *, V9fsFidOpenState *,
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const struct iovec *, int, off_t);
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|
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@ -1,5 +1,5 @@
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/*
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* Virtio 9p
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* 9p
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*
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* Copyright IBM, Corp. 2010
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*
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|
|
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@ -1,5 +1,5 @@
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/*
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* Virtio 9p
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* 9p
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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|
|
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@ -1,5 +1,5 @@
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/*
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* Virtio 9p
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* 9p
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*
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* Copyright IBM, Corp. 2010
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*
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|
|
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@ -1,5 +1,5 @@
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/*
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* Virtio 9p
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* 9p
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*
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* Copyright IBM, Corp. 2010
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*
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|
|
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@ -112,7 +112,7 @@ static int handle_close(FsContext *ctx, V9fsFidOpenState *fs)
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static int handle_closedir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return closedir(fs->dir);
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return closedir(fs->dir.stream);
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}
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static int handle_open(FsContext *ctx, V9fsPath *fs_path,
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@ -132,8 +132,8 @@ static int handle_opendir(FsContext *ctx,
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if (ret < 0) {
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return -1;
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}
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fs->dir = fdopendir(ret);
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if (!fs->dir) {
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fs->dir.stream = fdopendir(ret);
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if (!fs->dir.stream) {
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return -1;
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}
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return 0;
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@ -141,24 +141,22 @@ static int handle_opendir(FsContext *ctx,
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static void handle_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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rewinddir(fs->dir);
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rewinddir(fs->dir.stream);
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}
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static off_t handle_telldir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return telldir(fs->dir);
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return telldir(fs->dir.stream);
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}
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static int handle_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
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struct dirent *entry,
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struct dirent **result)
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static struct dirent *handle_readdir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return readdir_r(fs->dir, entry, result);
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return readdir(fs->dir.stream);
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}
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static void handle_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
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{
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seekdir(fs->dir, off);
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seekdir(fs->dir.stream, off);
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}
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static ssize_t handle_preadv(FsContext *ctx, V9fsFidOpenState *fs,
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|
@ -262,7 +260,7 @@ static int handle_fstat(FsContext *fs_ctx, int fid_type,
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int fd;
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if (fid_type == P9_FID_DIR) {
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fd = dirfd(fs->dir);
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fd = dirfd(fs->dir.stream);
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} else {
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fd = fs->fd;
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}
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|
@ -409,7 +407,7 @@ static int handle_fsync(FsContext *ctx, int fid_type,
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int fd;
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if (fid_type == P9_FID_DIR) {
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fd = dirfd(fs->dir);
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fd = dirfd(fs->dir.stream);
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} else {
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fd = fs->fd;
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}
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|
@ -681,7 +679,7 @@ FileOperations handle_ops = {
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.opendir = handle_opendir,
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.rewinddir = handle_rewinddir,
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.telldir = handle_telldir,
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.readdir_r = handle_readdir_r,
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.readdir = handle_readdir,
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.seekdir = handle_seekdir,
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.preadv = handle_preadv,
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.pwritev = handle_pwritev,
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|
|
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@ -348,7 +348,7 @@ static int local_close(FsContext *ctx, V9fsFidOpenState *fs)
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static int local_closedir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return closedir(fs->dir);
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return closedir(fs->dir.stream);
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}
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static int local_open(FsContext *ctx, V9fsPath *fs_path,
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|
@ -370,9 +370,9 @@ static int local_opendir(FsContext *ctx,
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char *path = fs_path->data;
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buffer = rpath(ctx, path);
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fs->dir = opendir(buffer);
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fs->dir.stream = opendir(buffer);
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g_free(buffer);
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if (!fs->dir) {
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if (!fs->dir.stream) {
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return -1;
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}
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return 0;
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|
@ -380,38 +380,40 @@ static int local_opendir(FsContext *ctx,
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static void local_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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rewinddir(fs->dir);
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rewinddir(fs->dir.stream);
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}
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static off_t local_telldir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return telldir(fs->dir);
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return telldir(fs->dir.stream);
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}
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static int local_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
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struct dirent *entry,
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struct dirent **result)
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static struct dirent *local_readdir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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int ret;
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struct dirent *entry;
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again:
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ret = readdir_r(fs->dir, entry, result);
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entry = readdir(fs->dir.stream);
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if (!entry) {
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return NULL;
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}
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if (ctx->export_flags & V9FS_SM_MAPPED) {
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entry->d_type = DT_UNKNOWN;
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} else if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
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if (!ret && *result != NULL &&
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!strcmp(entry->d_name, VIRTFS_META_DIR)) {
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if (!strcmp(entry->d_name, VIRTFS_META_DIR)) {
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/* skp the meta data directory */
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goto again;
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}
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entry->d_type = DT_UNKNOWN;
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}
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return ret;
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return entry;
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}
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static void local_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
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{
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seekdir(fs->dir, off);
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seekdir(fs->dir.stream, off);
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}
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static ssize_t local_preadv(FsContext *ctx, V9fsFidOpenState *fs,
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|
@ -610,7 +612,7 @@ static int local_fstat(FsContext *fs_ctx, int fid_type,
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int err, fd;
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if (fid_type == P9_FID_DIR) {
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fd = dirfd(fs->dir);
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fd = dirfd(fs->dir.stream);
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} else {
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fd = fs->fd;
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}
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@ -998,7 +1000,7 @@ static int local_fsync(FsContext *ctx, int fid_type,
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int fd;
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if (fid_type == P9_FID_DIR) {
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fd = dirfd(fs->dir);
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fd = dirfd(fs->dir.stream);
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} else {
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fd = fs->fd;
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}
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@ -1254,7 +1256,7 @@ FileOperations local_ops = {
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.opendir = local_opendir,
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.rewinddir = local_rewinddir,
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.telldir = local_telldir,
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.readdir_r = local_readdir_r,
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.readdir = local_readdir,
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.seekdir = local_seekdir,
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.preadv = local_preadv,
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.pwritev = local_pwritev,
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|
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@ -633,7 +633,7 @@ static int proxy_close(FsContext *ctx, V9fsFidOpenState *fs)
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static int proxy_closedir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return closedir(fs->dir);
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return closedir(fs->dir.stream);
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}
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static int proxy_open(FsContext *ctx, V9fsPath *fs_path,
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@ -652,14 +652,14 @@ static int proxy_opendir(FsContext *ctx,
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{
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int serrno, fd;
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fs->dir = NULL;
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fs->dir.stream = NULL;
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fd = v9fs_request(ctx->private, T_OPEN, NULL, "sd", fs_path, O_DIRECTORY);
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if (fd < 0) {
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errno = -fd;
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return -1;
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}
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fs->dir = fdopendir(fd);
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if (!fs->dir) {
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fs->dir.stream = fdopendir(fd);
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if (!fs->dir.stream) {
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serrno = errno;
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close(fd);
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errno = serrno;
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@ -670,24 +670,22 @@ static int proxy_opendir(FsContext *ctx,
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static void proxy_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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rewinddir(fs->dir);
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rewinddir(fs->dir.stream);
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}
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static off_t proxy_telldir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return telldir(fs->dir);
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return telldir(fs->dir.stream);
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}
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static int proxy_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
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struct dirent *entry,
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struct dirent **result)
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static struct dirent *proxy_readdir(FsContext *ctx, V9fsFidOpenState *fs)
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{
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return readdir_r(fs->dir, entry, result);
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return readdir(fs->dir.stream);
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}
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static void proxy_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
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{
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seekdir(fs->dir, off);
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seekdir(fs->dir.stream, off);
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}
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static ssize_t proxy_preadv(FsContext *ctx, V9fsFidOpenState *fs,
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|
@ -791,7 +789,7 @@ static int proxy_fstat(FsContext *fs_ctx, int fid_type,
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|||
int fd;
|
||||
|
||||
if (fid_type == P9_FID_DIR) {
|
||||
fd = dirfd(fs->dir);
|
||||
fd = dirfd(fs->dir.stream);
|
||||
} else {
|
||||
fd = fs->fd;
|
||||
}
|
||||
|
@ -936,7 +934,7 @@ static int proxy_fsync(FsContext *ctx, int fid_type,
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|||
int fd;
|
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|
||||
if (fid_type == P9_FID_DIR) {
|
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fd = dirfd(fs->dir);
|
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fd = dirfd(fs->dir.stream);
|
||||
} else {
|
||||
fd = fs->fd;
|
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}
|
||||
|
@ -1192,7 +1190,7 @@ FileOperations proxy_ops = {
|
|||
.opendir = proxy_opendir,
|
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.rewinddir = proxy_rewinddir,
|
||||
.telldir = proxy_telldir,
|
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.readdir_r = proxy_readdir_r,
|
||||
.readdir = proxy_readdir,
|
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.seekdir = proxy_seekdir,
|
||||
.preadv = proxy_preadv,
|
||||
.pwritev = proxy_pwritev,
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* Virtio 9p synthetic file system support
|
||||
* 9p synthetic file system support
|
||||
*
|
||||
* Copyright IBM, Corp. 2011
|
||||
*
|
||||
|
@ -13,9 +13,7 @@
|
|||
*/
|
||||
|
||||
#include "qemu/osdep.h"
|
||||
#include "hw/virtio/virtio.h"
|
||||
#include "9p.h"
|
||||
#include "9p-xattr.h"
|
||||
#include "fsdev/qemu-fsdev.h"
|
||||
#include "9p-synth.h"
|
||||
#include "qemu/rcu.h"
|
||||
|
@ -225,8 +223,8 @@ static void v9fs_synth_direntry(V9fsSynthNode *node,
|
|||
entry->d_off = off + 1;
|
||||
}
|
||||
|
||||
static int v9fs_synth_get_dentry(V9fsSynthNode *dir, struct dirent *entry,
|
||||
struct dirent **result, off_t off)
|
||||
static struct dirent *v9fs_synth_get_dentry(V9fsSynthNode *dir,
|
||||
struct dirent *entry, off_t off)
|
||||
{
|
||||
int i = 0;
|
||||
V9fsSynthNode *node;
|
||||
|
@ -242,25 +240,22 @@ static int v9fs_synth_get_dentry(V9fsSynthNode *dir, struct dirent *entry,
|
|||
rcu_read_unlock();
|
||||
if (!node) {
|
||||
/* end of directory */
|
||||
*result = NULL;
|
||||
return 0;
|
||||
return NULL;
|
||||
}
|
||||
v9fs_synth_direntry(node, entry, off);
|
||||
*result = entry;
|
||||
return 0;
|
||||
return entry;
|
||||
}
|
||||
|
||||
static int v9fs_synth_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
|
||||
struct dirent *entry, struct dirent **result)
|
||||
static struct dirent *v9fs_synth_readdir(FsContext *ctx, V9fsFidOpenState *fs)
|
||||
{
|
||||
int ret;
|
||||
struct dirent *entry;
|
||||
V9fsSynthOpenState *synth_open = fs->private;
|
||||
V9fsSynthNode *node = synth_open->node;
|
||||
ret = v9fs_synth_get_dentry(node, entry, result, synth_open->offset);
|
||||
if (!ret && *result != NULL) {
|
||||
entry = v9fs_synth_get_dentry(node, &synth_open->dent, synth_open->offset);
|
||||
if (entry) {
|
||||
synth_open->offset++;
|
||||
}
|
||||
return ret;
|
||||
return entry;
|
||||
}
|
||||
|
||||
static int v9fs_synth_open(FsContext *ctx, V9fsPath *fs_path,
|
||||
|
@ -546,7 +541,7 @@ FileOperations synth_ops = {
|
|||
.opendir = v9fs_synth_opendir,
|
||||
.rewinddir = v9fs_synth_rewinddir,
|
||||
.telldir = v9fs_synth_telldir,
|
||||
.readdir_r = v9fs_synth_readdir_r,
|
||||
.readdir = v9fs_synth_readdir,
|
||||
.seekdir = v9fs_synth_seekdir,
|
||||
.preadv = v9fs_synth_preadv,
|
||||
.pwritev = v9fs_synth_pwritev,
|
||||
|
|
|
@ -40,6 +40,7 @@ struct V9fsSynthNode {
|
|||
typedef struct V9fsSynthOpenState {
|
||||
off_t offset;
|
||||
V9fsSynthNode *node;
|
||||
struct dirent dent;
|
||||
} V9fsSynthOpenState;
|
||||
|
||||
extern int qemu_v9fs_synth_mkdir(V9fsSynthNode *parent, int mode,
|
||||
|
|
63
hw/9pfs/9p.c
63
hw/9pfs/9p.c
|
@ -13,7 +13,6 @@
|
|||
|
||||
#include "qemu/osdep.h"
|
||||
#include "hw/virtio/virtio.h"
|
||||
#include "hw/i386/pc.h"
|
||||
#include "qapi/error.h"
|
||||
#include "qemu/error-report.h"
|
||||
#include "qemu/iov.h"
|
||||
|
@ -232,7 +231,7 @@ static int v9fs_reopen_fid(V9fsPDU *pdu, V9fsFidState *f)
|
|||
} while (err == -EINTR && !pdu->cancelled);
|
||||
}
|
||||
} else if (f->fid_type == P9_FID_DIR) {
|
||||
if (f->fs.dir == NULL) {
|
||||
if (f->fs.dir.stream == NULL) {
|
||||
do {
|
||||
err = v9fs_co_opendir(pdu, f);
|
||||
} while (err == -EINTR && !pdu->cancelled);
|
||||
|
@ -301,6 +300,9 @@ static V9fsFidState *alloc_fid(V9fsState *s, int32_t fid)
|
|||
f->next = s->fid_list;
|
||||
s->fid_list = f;
|
||||
|
||||
v9fs_readdir_init(&f->fs.dir);
|
||||
v9fs_readdir_init(&f->fs_reclaim.dir);
|
||||
|
||||
return f;
|
||||
}
|
||||
|
||||
|
@ -346,7 +348,7 @@ static int free_fid(V9fsPDU *pdu, V9fsFidState *fidp)
|
|||
retval = v9fs_co_close(pdu, &fidp->fs);
|
||||
}
|
||||
} else if (fidp->fid_type == P9_FID_DIR) {
|
||||
if (fidp->fs.dir != NULL) {
|
||||
if (fidp->fs.dir.stream != NULL) {
|
||||
retval = v9fs_co_closedir(pdu, &fidp->fs);
|
||||
}
|
||||
} else if (fidp->fid_type == P9_FID_XATTR) {
|
||||
|
@ -444,7 +446,7 @@ void v9fs_reclaim_fd(V9fsPDU *pdu)
|
|||
reclaim_count++;
|
||||
}
|
||||
} else if (f->fid_type == P9_FID_DIR) {
|
||||
if (f->fs.dir != NULL) {
|
||||
if (f->fs.dir.stream != NULL) {
|
||||
/*
|
||||
* Up the reference count so that
|
||||
* a clunk request won't free this fid
|
||||
|
@ -452,8 +454,8 @@ void v9fs_reclaim_fd(V9fsPDU *pdu)
|
|||
f->ref++;
|
||||
f->rclm_lst = reclaim_list;
|
||||
reclaim_list = f;
|
||||
f->fs_reclaim.dir = f->fs.dir;
|
||||
f->fs.dir = NULL;
|
||||
f->fs_reclaim.dir.stream = f->fs.dir.stream;
|
||||
f->fs.dir.stream = NULL;
|
||||
reclaim_count++;
|
||||
}
|
||||
}
|
||||
|
@ -1625,7 +1627,7 @@ static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
|
|||
int32_t count = 0;
|
||||
struct stat stbuf;
|
||||
off_t saved_dir_pos;
|
||||
struct dirent *dent, *result;
|
||||
struct dirent *dent;
|
||||
|
||||
/* save the directory position */
|
||||
saved_dir_pos = v9fs_co_telldir(pdu, fidp);
|
||||
|
@ -1633,34 +1635,37 @@ static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
|
|||
return saved_dir_pos;
|
||||
}
|
||||
|
||||
dent = g_malloc(sizeof(struct dirent));
|
||||
|
||||
while (1) {
|
||||
v9fs_path_init(&path);
|
||||
err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
|
||||
if (err || !result) {
|
||||
|
||||
v9fs_readdir_lock(&fidp->fs.dir);
|
||||
|
||||
err = v9fs_co_readdir(pdu, fidp, &dent);
|
||||
if (err || !dent) {
|
||||
break;
|
||||
}
|
||||
err = v9fs_co_name_to_path(pdu, &fidp->path, dent->d_name, &path);
|
||||
if (err < 0) {
|
||||
goto out;
|
||||
break;
|
||||
}
|
||||
err = v9fs_co_lstat(pdu, &path, &stbuf);
|
||||
if (err < 0) {
|
||||
goto out;
|
||||
break;
|
||||
}
|
||||
err = stat_to_v9stat(pdu, &path, &stbuf, &v9stat);
|
||||
if (err < 0) {
|
||||
goto out;
|
||||
break;
|
||||
}
|
||||
/* 11 = 7 + 4 (7 = start offset, 4 = space for storing count) */
|
||||
len = pdu_marshal(pdu, 11 + count, "S", &v9stat);
|
||||
|
||||
v9fs_readdir_unlock(&fidp->fs.dir);
|
||||
|
||||
if ((len != (v9stat.size + 2)) || ((count + len) > max_count)) {
|
||||
/* Ran out of buffer. Set dir back to old position and return */
|
||||
v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
|
||||
v9fs_stat_free(&v9stat);
|
||||
v9fs_path_free(&path);
|
||||
g_free(dent);
|
||||
return count;
|
||||
}
|
||||
count += len;
|
||||
|
@ -1668,8 +1673,9 @@ static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
|
|||
v9fs_path_free(&path);
|
||||
saved_dir_pos = dent->d_off;
|
||||
}
|
||||
out:
|
||||
g_free(dent);
|
||||
|
||||
v9fs_readdir_unlock(&fidp->fs.dir);
|
||||
|
||||
v9fs_path_free(&path);
|
||||
if (err < 0) {
|
||||
return err;
|
||||
|
@ -1805,7 +1811,7 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
|
|||
int len, err = 0;
|
||||
int32_t count = 0;
|
||||
off_t saved_dir_pos;
|
||||
struct dirent *dent, *result;
|
||||
struct dirent *dent;
|
||||
|
||||
/* save the directory position */
|
||||
saved_dir_pos = v9fs_co_telldir(pdu, fidp);
|
||||
|
@ -1813,20 +1819,21 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
|
|||
return saved_dir_pos;
|
||||
}
|
||||
|
||||
dent = g_malloc(sizeof(struct dirent));
|
||||
|
||||
while (1) {
|
||||
err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
|
||||
if (err || !result) {
|
||||
v9fs_readdir_lock(&fidp->fs.dir);
|
||||
|
||||
err = v9fs_co_readdir(pdu, fidp, &dent);
|
||||
if (err || !dent) {
|
||||
break;
|
||||
}
|
||||
v9fs_string_init(&name);
|
||||
v9fs_string_sprintf(&name, "%s", dent->d_name);
|
||||
if ((count + v9fs_readdir_data_size(&name)) > max_count) {
|
||||
v9fs_readdir_unlock(&fidp->fs.dir);
|
||||
|
||||
/* Ran out of buffer. Set dir back to old position and return */
|
||||
v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
|
||||
v9fs_string_free(&name);
|
||||
g_free(dent);
|
||||
return count;
|
||||
}
|
||||
/*
|
||||
|
@ -1844,17 +1851,21 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
|
|||
len = pdu_marshal(pdu, 11 + count, "Qqbs",
|
||||
&qid, dent->d_off,
|
||||
dent->d_type, &name);
|
||||
|
||||
v9fs_readdir_unlock(&fidp->fs.dir);
|
||||
|
||||
if (len < 0) {
|
||||
v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
|
||||
v9fs_string_free(&name);
|
||||
g_free(dent);
|
||||
return len;
|
||||
}
|
||||
count += len;
|
||||
v9fs_string_free(&name);
|
||||
saved_dir_pos = dent->d_off;
|
||||
}
|
||||
g_free(dent);
|
||||
|
||||
v9fs_readdir_unlock(&fidp->fs.dir);
|
||||
|
||||
if (err < 0) {
|
||||
return err;
|
||||
}
|
||||
|
@ -1884,7 +1895,7 @@ static void v9fs_readdir(void *opaque)
|
|||
retval = -EINVAL;
|
||||
goto out_nofid;
|
||||
}
|
||||
if (!fidp->fs.dir) {
|
||||
if (!fidp->fs.dir.stream) {
|
||||
retval = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
|
24
hw/9pfs/9p.h
24
hw/9pfs/9p.h
|
@ -5,8 +5,6 @@
|
|||
#include <utime.h>
|
||||
#include <sys/resource.h>
|
||||
#include <glib.h>
|
||||
#include "standard-headers/linux/virtio_9p.h"
|
||||
#include "hw/virtio/virtio.h"
|
||||
#include "fsdev/file-op-9p.h"
|
||||
#include "fsdev/9p-iov-marshal.h"
|
||||
#include "qemu/thread.h"
|
||||
|
@ -169,13 +167,33 @@ typedef struct V9fsXattr
|
|||
int flags;
|
||||
} V9fsXattr;
|
||||
|
||||
typedef struct V9fsDir {
|
||||
DIR *stream;
|
||||
QemuMutex readdir_mutex;
|
||||
} V9fsDir;
|
||||
|
||||
static inline void v9fs_readdir_lock(V9fsDir *dir)
|
||||
{
|
||||
qemu_mutex_lock(&dir->readdir_mutex);
|
||||
}
|
||||
|
||||
static inline void v9fs_readdir_unlock(V9fsDir *dir)
|
||||
{
|
||||
qemu_mutex_unlock(&dir->readdir_mutex);
|
||||
}
|
||||
|
||||
static inline void v9fs_readdir_init(V9fsDir *dir)
|
||||
{
|
||||
qemu_mutex_init(&dir->readdir_mutex);
|
||||
}
|
||||
|
||||
/*
|
||||
* Filled by fs driver on open and other
|
||||
* calls.
|
||||
*/
|
||||
union V9fsFidOpenState {
|
||||
int fd;
|
||||
DIR *dir;
|
||||
V9fsDir dir;
|
||||
V9fsXattr xattr;
|
||||
/*
|
||||
* private pointer for fs drivers, that
|
||||
|
|
|
@ -1,6 +1,5 @@
|
|||
|
||||
/*
|
||||
* Virtio 9p backend
|
||||
* 9p backend
|
||||
*
|
||||
* Copyright IBM, Corp. 2011
|
||||
*
|
||||
|
@ -18,8 +17,7 @@
|
|||
#include "qemu/coroutine.h"
|
||||
#include "coth.h"
|
||||
|
||||
int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
|
||||
struct dirent **result)
|
||||
int v9fs_co_readdir(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent **dent)
|
||||
{
|
||||
int err;
|
||||
V9fsState *s = pdu->s;
|
||||
|
@ -29,11 +27,14 @@ int v9fs_co_readdir_r(V9fsPDU *pdu, V9fsFidState *fidp, struct dirent *dent,
|
|||
}
|
||||
v9fs_co_run_in_worker(
|
||||
{
|
||||
struct dirent *entry;
|
||||
|
||||
errno = 0;
|
||||
err = s->ops->readdir_r(&s->ctx, &fidp->fs, dent, result);
|
||||
if (!*result && errno) {
|
||||
entry = s->ops->readdir(&s->ctx, &fidp->fs);
|
||||
if (!entry && errno) {
|
||||
err = -errno;
|
||||
} else {
|
||||
*dent = entry;
|
||||
err = 0;
|
||||
}
|
||||
});
|
||||
|
|
|
@ -1,6 +1,5 @@
|
|||
|
||||
/*
|
||||
* Virtio 9p backend
|
||||
* 9p backend
|
||||
*
|
||||
* Copyright IBM, Corp. 2011
|
||||
*
|
||||
|
|
|
@ -1,6 +1,5 @@
|
|||
|
||||
/*
|
||||
* Virtio 9p backend
|
||||
* 9p backend
|
||||
*
|
||||
* Copyright IBM, Corp. 2011
|
||||
*
|
||||
|
|
|
@ -16,7 +16,6 @@
|
|||
#include "qemu-common.h"
|
||||
#include "block/thread-pool.h"
|
||||
#include "qemu/coroutine.h"
|
||||
#include "qemu/main-loop.h"
|
||||
#include "coth.h"
|
||||
|
||||
/* Called from QEMU I/O thread. */
|
||||
|
|
|
@ -17,7 +17,8 @@
|
|||
|
||||
#include "qemu/thread.h"
|
||||
#include "qemu/coroutine.h"
|
||||
#include "virtio-9p.h"
|
||||
#include "qemu/main-loop.h"
|
||||
#include "9p.h"
|
||||
|
||||
/*
|
||||
* we want to use bottom half because we want to make sure the below
|
||||
|
@ -48,8 +49,7 @@
|
|||
|
||||
extern void co_run_in_worker_bh(void *);
|
||||
extern int v9fs_co_readlink(V9fsPDU *, V9fsPath *, V9fsString *);
|
||||
extern int v9fs_co_readdir_r(V9fsPDU *, V9fsFidState *,
|
||||
struct dirent *, struct dirent **result);
|
||||
extern int v9fs_co_readdir(V9fsPDU *, V9fsFidState *, struct dirent **);
|
||||
extern off_t v9fs_co_telldir(V9fsPDU *, V9fsFidState *);
|
||||
extern void v9fs_co_seekdir(V9fsPDU *, V9fsFidState *, off_t);
|
||||
extern void v9fs_co_rewinddir(V9fsPDU *, V9fsFidState *);
|
||||
|
|
|
@ -1,6 +1,5 @@
|
|||
|
||||
/*
|
||||
* Virtio 9p backend
|
||||
* 9p backend
|
||||
*
|
||||
* Copyright IBM, Corp. 2011
|
||||
*
|
||||
|
|
|
@ -13,11 +13,9 @@
|
|||
|
||||
#include "qemu/osdep.h"
|
||||
#include "hw/virtio/virtio.h"
|
||||
#include "hw/i386/pc.h"
|
||||
#include "qemu/sockets.h"
|
||||
#include "virtio-9p.h"
|
||||
#include "fsdev/qemu-fsdev.h"
|
||||
#include "9p-xattr.h"
|
||||
#include "coth.h"
|
||||
#include "hw/virtio/virtio-access.h"
|
||||
#include "qemu/iov.h"
|
||||
|
|
Loading…
Reference in New Issue