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| author |   Luis Henriques <lhenriques@suse.com> | 2018-01-05 10:47:19 +0000 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2018-04-02 11:17:51 +0200 |
| commit | b7a2921765cf796280baf653a52b22b52e0ba266 (patch) | |
| tree | a7c6aad0d8aac1da1789b09c37a1852ef65c9c5c /fs/ceph/file.c | |
| parent | ceph: quota: add initial infrastructure to support cephfs quotas (diff) | |
| download | linux-dev-b7a2921765cf796280baf653a52b22b52e0ba266.tar.xz linux-dev-b7a2921765cf796280baf653a52b22b52e0ba266.zip | |
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.c | 4 |
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; |