6.6-stable review patch. If anyone has any objections, please let me know.
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From: Trond Myklebust trond.myklebust@hammerspace.com
[ Upstream commit b93128f29733af5d427a335978a19884c2c230e2 ]
Ensure that all O_DIRECT reads and writes complete before calling fallocate so that we don't race w.r.t. attribute updates.
Fixes: 99f237832243 ("NFSv4.2: Always flush out writes in nfs42_proc_fallocate()") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfs/nfs42proc.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 9f0d69e652644..66fe885fc19a1 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -112,6 +112,7 @@ static int nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, exception.inode = inode; exception.state = lock->open_context->state;
+ nfs_file_block_o_direct(NFS_I(inode)); err = nfs_sync_inode(inode); if (err) goto out;