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| author | Sage Weil <sage@newdream.net> | 2010-05-26 14:31:27 -0700 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-08-01 20:11:39 -0700 |
| commit | 33caad324b88f75f42d836735d86feaafb3b40cf (patch) | |
| tree | 57e50ce5bdc181ea296191784c4d57999c51207e /fs/ceph/caps.c | |
| parent | 8c6e9229fc1989cf263a6fcd4ff406d7f473f966 (diff) | |
| download | linux-33caad324b88f75f42d836735d86feaafb3b40cf.tar.gz linux-33caad324b88f75f42d836735d86feaafb3b40cf.tar.bz2 linux-33caad324b88f75f42d836735d86feaafb3b40cf.zip | |
ceph: perform lazy writes when file mode and caps permit
If we have marked a file as "lazy" (using the ceph ioctl), perform buffered
writes when the MDS caps allow it.
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/caps.c')
| -rw-r--r-- | fs/ceph/caps.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index b81be9a56487..1a70a3ebf013 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -337,8 +337,7 @@ static struct ceph_cap *__get_cap_for_mds(struct ceph_inode_info *ci, int mds) } /* - * Return id of any MDS with a cap, preferably FILE_WR|WRBUFFER|EXCL, else - * -1. + * Return id of any MDS with a cap, preferably FILE_WR|BUFFER|EXCL, else -1. */ static int __ceph_get_cap_mds(struct ceph_inode_info *ci, u32 *mseq) { @@ -346,7 +345,7 @@ static int __ceph_get_cap_mds(struct ceph_inode_info *ci, u32 *mseq) int mds = -1; struct rb_node *p; - /* prefer mds with WR|WRBUFFER|EXCL caps */ + /* prefer mds with WR|BUFFER|EXCL caps */ for (p = rb_first(&ci->i_caps); p; p = rb_next(p)) { cap = rb_entry(p, struct ceph_cap, ci_node); mds = cap->mds; @@ -831,7 +830,7 @@ int __ceph_caps_file_wanted(struct ceph_inode_info *ci) { int want = 0; int mode; - for (mode = 0; mode < 4; mode++) + for (mode = 0; mode < CEPH_FILE_MODE_NUM; mode++) if (ci->i_nr_by_mode[mode]) want |= ceph_caps_for_mode(mode); return want; |