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authorLuis Henriques <lhenriques@suse.com>2018-01-05 10:47:19 +0000
committerIlya Dryomov <idryomov@gmail.com>2018-04-02 11:17:51 +0200
commitb7a2921765cf796280baf653a52b22b52e0ba266 (patch)
treea7c6aad0d8aac1da1789b09c37a1852ef65c9c5c /fs/ceph/file.c
parentfb18a57568c2b84cd611e242c0f6fa97b45e4907 (diff)
ceph: quota: support for ceph.quota.max_files
This patch adds support for the max_files quota. It hooks into all the ceph functions that add new filesystem objects that need to be checked against the quota limits. When these limits are hit, -EDQUOT is returned. Note that we're not checking quotas on ceph_link(). ceph_link doesn't really create a new inode, and since the MDS doesn't update the directory statistics when a new (hard) link is created (only with symlinks), they are not accounted as a new file. Signed-off-by: Luis Henriques <lhenriques@suse.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/file.c')
-rw-r--r--fs/ceph/file.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 4a92acba1e9c..c3042330e0e9 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -402,7 +402,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
struct ceph_mds_request *req;
struct dentry *dn;
struct ceph_acls_info acls = {};
- int mask;
+ int mask;
int err;
dout("atomic_open %p dentry %p '%pd' %s flags %d mode 0%o\n",
@@ -413,6 +413,8 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
return -ENAMETOOLONG;
if (flags & O_CREAT) {
+ if (ceph_quota_is_max_files_exceeded(dir))
+ return -EDQUOT;
err = ceph_pre_init_acls(dir, &mode, &acls);
if (err < 0)
return err;