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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix typo which broke '..' detection in ext4_find_entry()
  ext4: Turn off multiple page-io submission by default
This commit is contained in:
Linus Torvalds 2010-12-15 12:41:17 -08:00
parent 667c78afae 6d5c3aa84b
commit a4851d8f7d
4 changed files with 18 additions and 4 deletions
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1
fs/ext4/ext4.h
View File

@ -910,6 +910,7 @@ struct ext4_inode_info {
#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000 /* Journal checksums */
#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000 /* Journal Async Commit */
#define EXT4_MOUNT_I_VERSION 0x2000000 /* i_version support */
#define EXT4_MOUNT_MBLK_IO_SUBMIT 0x4000000 /* multi-block io submits */
#define EXT4_MOUNT_DELALLOC 0x8000000 /* Delalloc support */
#define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000 /* Abort on file data write */
#define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000 /* Block validity checking */

5
fs/ext4/inode.c
View File

@ -2125,9 +2125,12 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd,
*/
if (unlikely(journal_data && PageChecked(page)))
err = __ext4_journalled_writepage(page, len);
else
else if (test_opt(inode->i_sb, MBLK_IO_SUBMIT))
err = ext4_bio_write_page(&io_submit, page,
len, mpd->wbc);
else
err = block_write_full_page(page,
noalloc_get_block_write, mpd->wbc);
if (!err)
mpd->pages_written++;

2
fs/ext4/namei.c
View File

@ -872,7 +872,7 @@ static struct buffer_head * ext4_find_entry (struct inode *dir,
if (namelen > EXT4_NAME_LEN)
return NULL;
if ((namelen <= 2) && (name[0] == '.') &&
(name[1] == '.' || name[1] == '0')) {
(name[1] == '.' || name[1] == '\0')) {
/*
* "." or ".." will only be in the first block
* NFS may look up ".."; "." should be handled by the VFS

14
fs/ext4/super.c
View File

@ -1026,6 +1026,8 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
!(def_mount_opts & EXT4_DEFM_NODELALLOC))
seq_puts(seq, ",nodelalloc");
if (test_opt(sb, MBLK_IO_SUBMIT))
seq_puts(seq, ",mblk_io_submit");
if (sbi->s_stripe)
seq_printf(seq, ",stripe=%lu", sbi->s_stripe);
/*
@ -1239,8 +1241,8 @@ enum {
Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err,
Opt_resize, Opt_usrquota, Opt_grpquota, Opt_i_version,
Opt_stripe, Opt_delalloc, Opt_nodelalloc,
Opt_block_validity, Opt_noblock_validity,
Opt_stripe, Opt_delalloc, Opt_nodelalloc, Opt_mblk_io_submit,
Opt_nomblk_io_submit, Opt_block_validity, Opt_noblock_validity,
Opt_inode_readahead_blks, Opt_journal_ioprio,
Opt_dioread_nolock, Opt_dioread_lock,
Opt_discard, Opt_nodiscard,
@ -1304,6 +1306,8 @@ static const match_table_t tokens = {
{Opt_resize, "resize"},
{Opt_delalloc, "delalloc"},
{Opt_nodelalloc, "nodelalloc"},
{Opt_mblk_io_submit, "mblk_io_submit"},
{Opt_nomblk_io_submit, "nomblk_io_submit"},
{Opt_block_validity, "block_validity"},
{Opt_noblock_validity, "noblock_validity"},
{Opt_inode_readahead_blks, "inode_readahead_blks=%u"},
@ -1725,6 +1729,12 @@ set_qf_format:
case Opt_nodelalloc:
clear_opt(sbi->s_mount_opt, DELALLOC);
break;
case Opt_mblk_io_submit:
set_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT);
break;
case Opt_nomblk_io_submit:
clear_opt(sbi->s_mount_opt, MBLK_IO_SUBMIT);
break;
case Opt_stripe:
if (match_int(&args[0], &option))
return 0;