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| author | Alex Elder <elder@dreamhost.com> | 2012-01-23 22:49:28 +0100 |
|---|---|---|
| committer | Alex Elder <elder@dreamhost.com> | 2012-03-22 16:47:46 +0100 |
| commit | 3ce6cd1233046eb97d6d2bd5d80c1cd40528ea2f (patch) | |
| tree | 43025c030db1741222b96156931b6aa2c8b85e51 /fs/ceph/super.h | |
| parent | ceph: encode type in vxattr callback routines (diff) | |
| download | linux-3ce6cd1233046eb97d6d2bd5d80c1cd40528ea2f.tar.xz linux-3ce6cd1233046eb97d6d2bd5d80c1cd40528ea2f.zip | |
ceph: avoid repeatedly computing the size of constant vxattr names
All names defined in the directory and file virtual extended
attribute tables are constant, and the size of each is known at
compile time. So there's no need to compute their length every
time any file's attribute is listed.
Record the length of each string and use it when needed to determine
the space need to represent them. In addition, compute the
aggregate size of strings in each table just once at initialization
time.
Signed-off-by: Alex Elder <elder@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 18d8a866a07b..fc35036d258d 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -733,6 +733,8 @@ extern ssize_t ceph_listxattr(struct dentry *, char *, size_t); extern int ceph_removexattr(struct dentry *, const char *); extern void __ceph_build_xattrs_blob(struct ceph_inode_info *ci); extern void __ceph_destroy_xattrs(struct ceph_inode_info *ci); +extern void __init ceph_xattr_init(void); +extern void ceph_xattr_exit(void); /* caps.c */ extern const char *ceph_cap_string(int c); |