| Message ID | 20210604222533.4760-7-pc@cjr.nz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | dfs fixes | expand |
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c index f7c4874ddc17..b4df779e4248 100644 --- a/fs/cifs/dfs_cache.c +++ b/fs/cifs/dfs_cache.c @@ -24,6 +24,7 @@ #define CACHE_HTABLE_SIZE 32 #define CACHE_MAX_ENTRIES 64 +#define CACHE_MIN_TTL 120 /* 2 minutes */ #define IS_INTERLINK_SET(v) ((v) & (DFSREF_REFERRAL_SERVER | \ DFSREF_STORAGE_SERVER)) @@ -503,7 +504,7 @@ static int copy_ref_data(const struct dfs_info3_param *refs, int numrefs, { int i; - ce->ttl = refs[0].ttl; + ce->ttl = max_t(int, refs[0].ttl, CACHE_MIN_TTL); ce->etime = get_expire_time(ce->ttl); ce->srvtype = refs[0].server_type; ce->hdr_flags = refs[0].flags;
We don't want to refresh the dfs cache in very short intervals, so setting a minimum interval of 2 minutes is OK. If it needs to be refreshed immediately, one could have the cache cleared with $ echo 0 > /proc/fs/cifs/dfscache and then remounting the dfs share. Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> --- fs/cifs/dfs_cache.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)