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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-09 12:08:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-09 12:08:43 -0700 |
commit | 1f792dd1765e6f047ecd2d5f6a81f025b50d471a (patch) | |
tree | 1709089f248e26ed23ca0466a5096d210fb16ee2 /fs | |
parent | c75e24752c0c87938a5955d9056dfb83e8352206 (diff) | |
parent | e628753bf925b058b6811527492f7529f4d27691 (diff) | |
download | op-kernel-dev-1f792dd1765e6f047ecd2d5f6a81f025b50d471a.zip op-kernel-dev-1f792dd1765e6f047ecd2d5f6a81f025b50d471a.tar.gz |
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext3 fix and quota cleanup from Jan Kara:
"A fix of ext3 error reporting from fsync and a quota cleanup"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Convert use of typedef ctl_table to struct ctl_table
ext3: Fix fsync error handling after filesystem abort.
Diffstat (limited to 'fs')
-rw-r--r-- | fs/ext3/fsync.c | 8 | ||||
-rw-r--r-- | fs/ext3/super.c | 13 | ||||
-rw-r--r-- | fs/quota/dquot.c | 6 |
3 files changed, 21 insertions, 6 deletions
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index b31dbd4..1cb9c7e 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c @@ -48,9 +48,13 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync) trace_ext3_sync_file_enter(file, datasync); - if (inode->i_sb->s_flags & MS_RDONLY) + if (inode->i_sb->s_flags & MS_RDONLY) { + /* Make sure that we read updated state */ + smp_rmb(); + if (EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS) + return -EROFS; return 0; - + } ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret) goto out; diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 6356665..c47f147 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -174,6 +174,11 @@ static void ext3_handle_error(struct super_block *sb) if (test_opt (sb, ERRORS_RO)) { ext3_msg(sb, KERN_CRIT, "error: remounting filesystem read-only"); + /* + * Make sure updated value of ->s_mount_state will be visible + * before ->s_flags update. + */ + smp_wmb(); sb->s_flags |= MS_RDONLY; } ext3_commit_super(sb, es, 1); @@ -291,8 +296,14 @@ void ext3_abort(struct super_block *sb, const char *function, ext3_msg(sb, KERN_CRIT, "error: remounting filesystem read-only"); EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS; - sb->s_flags |= MS_RDONLY; set_opt(EXT3_SB(sb)->s_mount_opt, ABORT); + /* + * Make sure updated value of ->s_mount_state will be visible + * before ->s_flags update. + */ + smp_wmb(); + sb->s_flags |= MS_RDONLY; + if (EXT3_SB(sb)->s_journal) journal_abort(EXT3_SB(sb)->s_journal, -EIO); } diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 3e64169..fbad622 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2585,7 +2585,7 @@ static int do_proc_dqstats(struct ctl_table *table, int write, return proc_dointvec(table, write, buffer, lenp, ppos); } -static ctl_table fs_dqstats_table[] = { +static struct ctl_table fs_dqstats_table[] = { { .procname = "lookups", .data = &dqstats.stat[DQST_LOOKUPS], @@ -2654,7 +2654,7 @@ static ctl_table fs_dqstats_table[] = { { }, }; -static ctl_table fs_table[] = { +static struct ctl_table fs_table[] = { { .procname = "quota", .mode = 0555, @@ -2663,7 +2663,7 @@ static ctl_table fs_table[] = { { }, }; -static ctl_table sys_table[] = { +static struct ctl_table sys_table[] = { { .procname = "fs", .mode = 0555, |