From e027ddb6d3cce80945ab86358929460f91f5cf4f Mon Sep 17 00:00:00 2001 From: Xiubo Li Date: Thu, 23 Jun 2022 17:17:21 +0800 Subject: [PATCH] ceph: flush the dirty caps immediatelly when quota is approaching MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When the quota is approaching we need to notify it to the MDS as soon as possible, or the client could write to the directory more than expected. This will flush the dirty caps without delaying after each write, though this couldn't prevent the real size of a directory exceed the quota but could prevent it as soon as possible. Link: https://tracker.ceph.com/issues/56180 Signed-off-by: Xiubo Li Reviewed-by: Luís Henriques Signed-off-by: Ilya Dryomov --- fs/ceph/caps.c | 5 +++-- fs/ceph/file.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 0acff406ba29..53cfe026b3ea 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -1978,14 +1978,15 @@ retry: } dout("check_caps %llx.%llx file_want %s used %s dirty %s flushing %s" - " issued %s revoking %s retain %s %s%s\n", ceph_vinop(inode), + " issued %s revoking %s retain %s %s%s%s\n", ceph_vinop(inode), ceph_cap_string(file_wanted), ceph_cap_string(used), ceph_cap_string(ci->i_dirty_caps), ceph_cap_string(ci->i_flushing_caps), ceph_cap_string(issued), ceph_cap_string(revoking), ceph_cap_string(retain), (flags & CHECK_CAPS_AUTHONLY) ? " AUTHONLY" : "", - (flags & CHECK_CAPS_FLUSH) ? " FLUSH" : ""); + (flags & CHECK_CAPS_FLUSH) ? " FLUSH" : "", + (flags & CHECK_CAPS_NOINVAL) ? " NOINVAL" : ""); /* * If we no longer need to hold onto old our caps, and we may diff --git a/fs/ceph/file.c b/fs/ceph/file.c index ffb717e2c1df..cd025ff25bf0 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1912,7 +1912,7 @@ retry_snap: if (dirty) __mark_inode_dirty(inode, dirty); if (ceph_quota_is_max_bytes_approaching(inode, iocb->ki_pos)) - ceph_check_caps(ci, 0, NULL); + ceph_check_caps(ci, CHECK_CAPS_FLUSH, NULL); } dout("aio_write %p %llx.%llx %llu~%u dropping cap refs on %s\n", @@ -2529,7 +2529,8 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off, /* Let the MDS know about dst file size change */ if (ceph_inode_set_size(dst_inode, dst_off) || ceph_quota_is_max_bytes_approaching(dst_inode, dst_off)) - ceph_check_caps(dst_ci, CHECK_CAPS_AUTHONLY, NULL); + ceph_check_caps(dst_ci, CHECK_CAPS_AUTHONLY | CHECK_CAPS_FLUSH, + NULL); } /* Mark Fw dirty */ spin_lock(&dst_ci->i_ceph_lock);