diff options
author | Jia Zhu <zhujia.zj@bytedance.com> | 2023-11-20 12:14:22 +0800 |
---|---|---|
committer | Christian Brauner <brauner@kernel.org> | 2023-11-25 16:03:57 +0100 |
commit | e73fa11a356ca0905c3cc648eaacc6f0f2d2c8b3 (patch) | |
tree | 43eee30a526dcd025ab72ce1aa8f3dfb09a5d87f /fs/cachefiles/internal.h | |
parent | b817e22b2e91257ace32a6768c3c003faeaa1c5c (diff) |
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 <hsiangkao@linux.alibaba.com>
Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Link: https://lore.kernel.org/r/20231120041422.75170-6-zhujia.zj@bytedance.com
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/cachefiles/internal.h')
-rw-r--r-- | fs/cachefiles/internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h index 26e5f8f123ef..4a87c9d714a9 100644 --- a/fs/cachefiles/internal.h +++ b/fs/cachefiles/internal.h @@ -303,6 +303,9 @@ extern ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache, extern int cachefiles_ondemand_copen(struct cachefiles_cache *cache, char *args); +extern int cachefiles_ondemand_restore(struct cachefiles_cache *cache, + char *args); + extern int cachefiles_ondemand_init_object(struct cachefiles_object *object); extern void cachefiles_ondemand_clean_object(struct cachefiles_object *object); |