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ceph: make ->sync_fs not wait if wait==0 

The ->sync_fs() super op only needs to wait if wait is true.  Otherwise,
just get some dirty cap writeback started.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-07-30 09:38:13 -07:00
parent b8cd07e78e
commit 2d9c98ae97
1 changed files with 13 additions and 4 deletions
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17
fs/ceph/super.c
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@ -102,12 +102,21 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
}
static int ceph_syncfs(struct super_block *sb, int wait)
static int ceph_sync_fs(struct super_block *sb, int wait)
{
dout("sync_fs %d\n", wait);
struct ceph_client *client = ceph_sb_to_client(sb);
if (!wait) {
dout("sync_fs (non-blocking)\n");
ceph_flush_dirty_caps(&client->mdsc);
dout("sync_fs (non-blocking) done\n");
return 0;
}
dout("sync_fs (blocking)\n");
ceph_osdc_sync(&ceph_sb_to_client(sb)->osdc);
ceph_mdsc_sync(&ceph_sb_to_client(sb)->mdsc);
dout("sync_fs %d done\n", wait);
dout("sync_fs (blocking) done\n");
return 0;
}
@ -278,7 +287,7 @@ static const struct super_operations ceph_super_ops = {
.alloc_inode = ceph_alloc_inode,
.destroy_inode = ceph_destroy_inode,
.write_inode = ceph_write_inode,
.sync_fs = ceph_syncfs,
.sync_fs = ceph_sync_fs,
.put_super = ceph_put_super,
.show_options = ceph_show_options,
.statfs = ceph_statfs,