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authorNamjae Jeon <linkinjeon@kernel.org>2024-05-21 22:57:52 +0900
committerSteve French <stfrench@microsoft.com>2024-07-14 18:00:35 -0500
commit520da3c488c5bb177871634e713eb8a106082e6b (patch)
tree2263a5d208bd8de091da891266d9f1e943d5d7f7 /fs/smb/server
parent051d469be1b355ffc62fcd9c82195230c780228a (diff)
ksmbd: avoid reclaiming expired durable opens by the client
The expired durable opens should not be reclaimed by client. This patch add ->durable_scavenger_timeout to fp and check it in ksmbd_lookup_durable_fd(). Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/server')
-rw-r--r--fs/smb/server/vfs_cache.c9
-rw-r--r--fs/smb/server/vfs_cache.h1
2 files changed, 9 insertions, 1 deletions
diff --git a/fs/smb/server/vfs_cache.c b/fs/smb/server/vfs_cache.c
index 8b2e37c8716e..baf7f67ec212 100644
--- a/fs/smb/server/vfs_cache.c
+++ b/fs/smb/server/vfs_cache.c
@@ -477,7 +477,10 @@ struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id)
struct ksmbd_file *fp;
fp = __ksmbd_lookup_fd(&global_ft, id);
- if (fp && fp->conn) {
+ if (fp && (fp->conn ||
+ (fp->durable_scavenger_timeout &&
+ (fp->durable_scavenger_timeout <
+ jiffies_to_msecs(jiffies))))) {
ksmbd_put_durable_fd(fp);
fp = NULL;
}
@@ -718,6 +721,10 @@ static bool session_fd_check(struct ksmbd_tree_connect *tcon,
fp->tcon = NULL;
fp->volatile_id = KSMBD_NO_FID;
+ if (fp->durable_timeout)
+ fp->durable_scavenger_timeout =
+ jiffies_to_msecs(jiffies) + fp->durable_timeout;
+
return true;
}
diff --git a/fs/smb/server/vfs_cache.h b/fs/smb/server/vfs_cache.h
index 5a225e7055f1..f2ab1514e81a 100644
--- a/fs/smb/server/vfs_cache.h
+++ b/fs/smb/server/vfs_cache.h
@@ -101,6 +101,7 @@ struct ksmbd_file {
struct list_head lock_list;
int durable_timeout;
+ int durable_scavenger_timeout;
/* if ls is happening on directory, below is valid*/
struct ksmbd_readdir_data readdir_data;