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| author | Baokun Li <libaokun1@huawei.com> | 2024-07-19 21:43:36 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-25 09:49:20 +0200 |
| commit | a6fce9b4fe61a883f891868a3ef20185e6fcf456 (patch) | |
| tree | adbe60e678f1e57edc8417ce521f67273ef6155a /include | |
| parent | 1d9bbbe6f28279c2002b9fbc1d76a47e9c41e9c9 (diff) | |
| download | linux-a6fce9b4fe61a883f891868a3ef20185e6fcf456.tar.gz linux-a6fce9b4fe61a883f891868a3ef20185e6fcf456.tar.bz2 linux-a6fce9b4fe61a883f891868a3ef20185e6fcf456.zip | |
netfs, fscache: export fscache_put_volume() and add fscache_try_get_volume()
[ Upstream commit 85b08b31a22b481ec6528130daf94eee4452e23f ]
Export fscache_put_volume() and add fscache_try_get_volume()
helper function to allow cachefiles to get/put fscache_volume
via linux/fscache-cache.h.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20240628062930.2467993-2-libaokun@huaweicloud.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Stable-dep-of: 522018a0de6b ("cachefiles: fix slab-use-after-free in fscache_withdraw_volume()")
Stable-dep-of: 5d8f80578907 ("cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fscache-cache.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h index a174cedf4d90..35e86d2f2887 100644 --- a/include/linux/fscache-cache.h +++ b/include/linux/fscache-cache.h @@ -19,6 +19,7 @@ enum fscache_cache_trace; enum fscache_cookie_trace; enum fscache_access_trace; +enum fscache_volume_trace; enum fscache_cache_state { FSCACHE_CACHE_IS_NOT_PRESENT, /* No cache is present for this name */ @@ -97,6 +98,11 @@ extern void fscache_withdraw_cookie(struct fscache_cookie *cookie); extern void fscache_io_error(struct fscache_cache *cache); +extern struct fscache_volume * +fscache_try_get_volume(struct fscache_volume *volume, + enum fscache_volume_trace where); +extern void fscache_put_volume(struct fscache_volume *volume, + enum fscache_volume_trace where); extern void fscache_end_volume_access(struct fscache_volume *volume, struct fscache_cookie *cookie, enum fscache_access_trace why); |