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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-08 18:06:08 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-10-08 18:06:08 +0300 |
| commit | e55f1d1d13e7f1c364672d667d78fd1f640ab9f9 (patch) | |
| tree | 406a3c127abb008f2f736c8d2ee03fc3c2926d6b /fs/reiserfs/super.c | |
| parent | f334bcd94b7d3c0fbc34d518a86548f451ab5faf (diff) | |
| parent | 030b533c4fd4d2ec3402363323de4bb2983c9cee (diff) | |
| download | linux-e55f1d1d13e7f1c364672d667d78fd1f640ab9f9.tar.xz | |
Merge remote-tracking branch 'jk/vfs' into work.misc
Diffstat (limited to 'fs/reiserfs/super.c')
| -rw-r--r-- | fs/reiserfs/super.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 7a4a85a6821e..74d5ddd26296 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -190,7 +190,15 @@ static int remove_save_link_only(struct super_block *s, static int reiserfs_quota_on_mount(struct super_block *, int); #endif -/* look for uncompleted unlinks and truncates and complete them */ +/* + * Look for uncompleted unlinks and truncates and complete them + * + * Called with superblock write locked. If quotas are enabled, we have to + * release/retake lest we call dquot_quota_on_mount(), proceed to + * schedule_on_each_cpu() in invalidate_bdev() and deadlock waiting for the per + * cpu worklets to complete flush_async_commits() that in turn wait for the + * superblock write lock. + */ static int finish_unfinished(struct super_block *s) { INITIALIZE_PATH(path); @@ -237,7 +245,9 @@ static int finish_unfinished(struct super_block *s) quota_enabled[i] = 0; continue; } + reiserfs_write_unlock(s); ret = reiserfs_quota_on_mount(s, i); + reiserfs_write_lock(s); if (ret < 0) reiserfs_warning(s, "reiserfs-2500", "cannot turn on journaled " |