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9p: Set default negative dentry retention time for cache=loose

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For cache=loose mounts, set the default negative dentry cache retention
time to 24 hours.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Message-ID: <b5beca3e70890ab8a4f0b9e99bd69cb97f5cb9eb.1779355927.git.repk@triplefau.lt>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
This commit is contained in:
Remi Pommarel
2026-05-21 11:40:31 +02:00
committed by Dominique Martinet
parent 5670a84b5c
commit 15bbf82857
1 changed files with 10 additions and 0 deletions
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10
fs/9p/v9fs.c
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@@ -24,6 +24,9 @@
#include "v9fs_vfs.h"
#include "cache.h"
/* cache=loose default negative dentry retention time is 24hours */
#define CACHE_LOOSE_NDENTRY_TIMEOUT_DEFAULT (24 * 60 * 60 * 1000)
static DEFINE_SPINLOCK(v9fs_sessionlist_lock);
static LIST_HEAD(v9fs_sessionlist);
struct kmem_cache *v9fs_inode_cache;
@@ -441,6 +444,13 @@ static void v9fs_apply_options(struct v9fs_session_info *v9ses,
v9ses->uid = ctx->session_opts.uid;
v9ses->session_lock_timeout = ctx->session_opts.session_lock_timeout;
v9ses->ndentry_timeout_ms = ctx->session_opts.ndentry_timeout_ms;
/* If negative dentry timeout has not been overridden set default for
* cache=loose
*/
if (!(v9ses->flags & V9FS_NDENTRY_TIMEOUT_SET) &&
(v9ses->cache & CACHE_LOOSE))
v9ses->ndentry_timeout_ms = CACHE_LOOSE_NDENTRY_TIMEOUT_DEFAULT;
}
/**