summaryrefslogtreecommitdiffstats
path: root/Documentation/filesystems
diff options
context:
space:
mode:
authorYan, Zheng <zyan@redhat.com>2019-02-01 14:57:15 +0800
committerIlya Dryomov <idryomov@gmail.com>2019-03-05 18:55:17 +0100
commitfe33032daae2e584d9e7e33bab44c9eafced1f8f (patch)
treea03be95fd94ffcd66c69e2146a1930837f769eb4 /Documentation/filesystems
parent37c4efc1ddf98ba8b234d116d863a9464445901e (diff)
downloadlinux-fe33032daae2e584d9e7e33bab44c9eafced1f8f.tar.bz2
ceph: add mount option to limit caps count
If number of caps exceed the limit, ceph_trim_dentires() also trim dentries with valid leases. Trimming dentry releases references to associated inode, which may evict inode and release caps. By default, there is no limit for caps count. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/ceph.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt
index 1177052701e1..bc4145ee5dba 100644
--- a/Documentation/filesystems/ceph.txt
+++ b/Documentation/filesystems/ceph.txt
@@ -118,6 +118,10 @@ Mount Options
of a non-responsive Ceph file system. The default is 30
seconds.
+ caps_max=X
+ Specify the maximum number of caps to hold. Unused caps are released
+ when number of caps exceeds the limit. The default is 0 (no limit)
+
rbytes
When stat() is called on a directory, set st_size to 'rbytes',
the summation of file sizes over all files nested beneath that