diff options
| author | Yan, Zheng <zyan@redhat.com> | 2017-05-22 12:03:32 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-07-07 17:25:12 +0200 |
| commit | efb0ca765ac6f4985b57ef215e8d55e746b083f4 (patch) | |
| tree | 8333c6ae9ed47a7134c0163d07670970d1eff4b4 /fs/ceph/caps.c | |
| parent | 84eea8c79090c44564877cd47c73455e32ec4846 (diff) | |
ceph: update the 'approaching max_size' code
The old 'approaching max_size' code expects MDS set max_size to
'2 * reported_size'. This is no longer true. The new code reports
file size when half of previous max_size increment has been used.
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 6752223dc81c..f5552455223f 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -1653,6 +1653,21 @@ static int try_nonblocking_invalidate(struct inode *inode) return -1; } +bool __ceph_should_report_size(struct ceph_inode_info *ci) +{ + loff_t size = ci->vfs_inode.i_size; + /* mds will adjust max size according to the reported size */ + if (ci->i_flushing_caps & CEPH_CAP_FILE_WR) + return false; + if (size >= ci->i_max_size) + return true; + /* half of previous max_size increment has been used */ + if (ci->i_max_size > ci->i_reported_size && + (size << 1) >= ci->i_max_size + ci->i_reported_size) + return true; + return false; +} + /* * Swiss army knife function to examine currently used and wanted * versus held caps. Release, flush, ack revoked caps to mds as @@ -1806,8 +1821,7 @@ retry_locked: } /* approaching file_max? */ - if ((inode->i_size << 1) >= ci->i_max_size && - (ci->i_reported_size << 1) < ci->i_max_size) { + if (__ceph_should_report_size(ci)) { dout("i_size approaching max_size\n"); goto ack; } |