korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-17 01:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

NFSv4: Don't hold the layoutget locks across multiple RPC calls

Browse Source 
[ Upstream commit 6949493884 ]

When doing layoutget as part of the open() compound, we have to be
careful to release the layout locks before we can call any further RPC
calls, such as setattr(). The reason is that those calls could trigger
a recall, which could deadlock.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Trond Myklebust 2022-05-14 10:08:14 -04:00 committed by Greg Kroah-Hartman
parent 7b5488f472
commit d4c2a041ed
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/nfs/nfs4proc.c
View File

@ -3108,6 +3108,10 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
}
out:
if (opendata->lgp) {
nfs4_lgopen_release(opendata->lgp);
opendata->lgp = NULL;
}
if (!opendata->cancelled)
nfs4_sequence_free_slot(&opendata->o_res.seq_res);
return ret;