diff options
| author | Jia Zhu <[email protected]> | 2023-11-20 04:14:22 +0000 |
|---|---|---|
| committer | Christian Brauner <[email protected]> | 2023-11-25 15:03:57 +0000 |
| commit | e73fa11a356ca0905c3cc648eaacc6f0f2d2c8b3 (patch) | |
| tree | 43eee30a526dcd025ab72ce1aa8f3dfb09a5d87f /fs/cachefiles/daemon.c | |
| parent | cachefiles: narrow the scope of triggering EPOLLIN events in ondemand mode (diff) | |
| download | kernel-e73fa11a356ca0905c3cc648eaacc6f0f2d2c8b3.tar.gz kernel-e73fa11a356ca0905c3cc648eaacc6f0f2d2c8b3.zip | |
cachefiles: add restore command to recover inflight ondemand read requests
Previously, in ondemand read scenario, if the anonymous fd was closed by
user daemon, inflight and subsequent read requests would return EIO.
As long as the device connection is not released, user daemon can hold
and restore inflight requests by setting the request flag to
CACHEFILES_REQ_NEW.
Suggested-by: Gao Xiang <[email protected]>
Signed-off-by: Jia Zhu <[email protected]>
Signed-off-by: Xin Yin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Jingbo Xu <[email protected]>
Reviewed-by: David Howells <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
Diffstat (limited to 'fs/cachefiles/daemon.c')
| -rw-r--r-- | fs/cachefiles/daemon.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c index 70caa1946207..3f24905f4066 100644 --- a/fs/cachefiles/daemon.c +++ b/fs/cachefiles/daemon.c @@ -77,6 +77,7 @@ static const struct cachefiles_daemon_cmd cachefiles_daemon_cmds[] = { { "tag", cachefiles_daemon_tag }, #ifdef CONFIG_CACHEFILES_ONDEMAND { "copen", cachefiles_ondemand_copen }, + { "restore", cachefiles_ondemand_restore }, #endif { "", NULL } }; |