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authorJens Axboe <axboe@kernel.dk>2020-10-30 09:36:41 -0600
committerJens Axboe <axboe@kernel.dk>2020-11-04 10:22:56 -0700
commit3dd1680d1418f22f7ddaf98a4eab66285a099b3e (patch)
treeb7dda128ec5c7d8d2baf53b1277fe68d2bf366ec /fs/io-wq.c
parent3cea11cd5e3b00d91caf0b4730194039b45c5891 (diff)
io-wq: cancel request if it's asking for files and we don't have them
This can't currently happen, but will be possible shortly. Handle missing files just like we do not being able to grab a needed mm, and mark the request as needing cancelation. Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io-wq.c')
-rw-r--r--fs/io-wq.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 02894df7656d..b53c055bea6a 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -482,6 +482,10 @@ static void io_impersonate_work(struct io_worker *worker,
current->files = work->identity->files;
current->nsproxy = work->identity->nsproxy;
task_unlock(current);
+ if (!work->identity->files) {
+ /* failed grabbing files, ensure work gets cancelled */
+ work->flags |= IO_WQ_WORK_CANCEL;
+ }
}
if ((work->flags & IO_WQ_WORK_FS) && current->fs != work->identity->fs)
current->fs = work->identity->fs;