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| author | Jan Kara <jack@suse.cz> | 2024-01-22 15:31:21 +0300 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2024-01-23 21:21:11 +0300 |
| commit | 6c5026c1ef5b57a8d1ddeb6f2bf0c1624d6a849f (patch) | |
| tree | 22c41faebed7ced474c72b3a83ae6570ae142f21 /fs/ocfs2/quota_local.c | |
| parent | c3e637c7f0c9aea051b3e49fc243ad83e19348c6 (diff) | |
| download | linux-6c5026c1ef5b57a8d1ddeb6f2bf0c1624d6a849f.tar.xz | |
quota: Set nofs allocation context when acquiring dqio_sem
dqio_sem can be acquired during inode reclaim through dquot_drop() ->
dqput() -> dquot_release() -> write_file_info() context. In some cases
(most notably through dquot_get_next_id()) it can be acquired without
holding dquot->dq_lock (which already sets nofs allocation context). So
we need to set nofs allocation context when acquiring it as well.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ocfs2/quota_local.c')
| -rw-r--r-- | fs/ocfs2/quota_local.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index e09842fc9d4d..8ce462c64c51 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -470,6 +470,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode, int bit, chunk; struct ocfs2_recovery_chunk *rchunk, *next; qsize_t spacechange, inodechange; + unsigned int memalloc; trace_ocfs2_recover_local_quota_file((unsigned long)lqinode->i_ino, type); @@ -521,6 +522,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode, goto out_drop_lock; } down_write(&sb_dqopt(sb)->dqio_sem); + memalloc = memalloc_nofs_save(); spin_lock(&dquot->dq_dqb_lock); /* Add usage from quota entry into quota changes * of our node. Auxiliary variables are important @@ -553,6 +555,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode, unlock_buffer(qbh); ocfs2_journal_dirty(handle, qbh); out_commit: + memalloc_nofs_restore(memalloc); up_write(&sb_dqopt(sb)->dqio_sem); ocfs2_commit_trans(OCFS2_SB(sb), handle); out_drop_lock: |