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| author | Sage Weil <sage@inktank.com> | 2013-02-22 15:31:00 -0800 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-02-22 15:31:00 -0800 |
| commit | 92a49fb0f79f3300e6e50ddf56238e70678e4202 (patch) | |
| tree | f411b004dd4f67356621a6bde80c23c089700f0f /fs/ceph/super.c | |
| parent | 4c7a08c83a7842e88838dde16684d6bafffdfaf0 (diff) | |
| download | lwn-92a49fb0f79f3300e6e50ddf56238e70678e4202.tar.gz lwn-92a49fb0f79f3300e6e50ddf56238e70678e4202.zip | |
ceph: fix statvfs fr_size
Different versions of glibc are broken in different ways, but the short of
it is that for the time being, frsize should == bsize, and be used as the
multiple for the blocks, free, and available fields. This mirrors what is
done for NFS. The previous reporting of the page size for frsize meant
that newer glibc and df would report a very small value for the fs size.
Fixes http://tracker.ceph.com/issues/3793.
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
Diffstat (limited to 'fs/ceph/super.c')
| -rw-r--r-- | fs/ceph/super.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index e86aa9948124..9fe17c6c2876 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -71,8 +71,14 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf) /* * express utilization in terms of large blocks to avoid * overflow on 32-bit machines. + * + * NOTE: for the time being, we make bsize == frsize to humor + * not-yet-ancient versions of glibc that are broken. + * Someday, we will probably want to report a real block + * size... whatever that may mean for a network file system! */ buf->f_bsize = 1 << CEPH_BLOCK_SHIFT; + buf->f_frsize = 1 << CEPH_BLOCK_SHIFT; buf->f_blocks = le64_to_cpu(st.kb) >> (CEPH_BLOCK_SHIFT-10); buf->f_bfree = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10); buf->f_bavail = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10); @@ -80,7 +86,6 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_files = le64_to_cpu(st.num_objects); buf->f_ffree = -1; buf->f_namelen = NAME_MAX; - buf->f_frsize = PAGE_CACHE_SIZE; /* leave fsid little-endian, regardless of host endianness */ fsid = *(u64 *)(&monmap->fsid) ^ *((u64 *)&monmap->fsid + 1); |