diff options
| author | Aristeu Rozanski <aris@redhat.com> | 2012-09-11 22:28:11 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-09-13 20:08:47 +0200 |
| commit | 4895768b6aab55bbdbebcf2da090cb1a5ccf5463 (patch) | |
| tree | d28dd72460784469e1f3945295197be4d8166bd3 /fs/xattr.c | |
| parent | cgroup: add documentation on extended attributes usage (diff) | |
| download | linux-4895768b6aab55bbdbebcf2da090cb1a5ccf5463.tar.xz linux-4895768b6aab55bbdbebcf2da090cb1a5ccf5463.zip | |
fs: add missing documentation to simple_xattr functions
v2: add function documentation instead of adding a separate file under
Documentation/
tj: Updated comment a bit and rolled in Randy's suggestions.
Cc: Li Zefan <lizefan@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Lennart Poettering <lpoetter@redhat.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'fs/xattr.c')
| -rw-r--r-- | fs/xattr.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index e17e773517ef..f053c1135d0f 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -892,8 +892,19 @@ out: } -/* - * xattr SET operation for in-memory/pseudo filesystems +/** + * simple_xattr_set - xattr SET operation for in-memory/pseudo filesystems + * @xattrs: target simple_xattr list + * @name: name of the new extended attribute + * @value: value of the new xattr. If %NULL, will remove the attribute + * @size: size of the new xattr + * @flags: %XATTR_{CREATE|REPLACE} + * + * %XATTR_CREATE is set, the xattr shouldn't exist already; otherwise fails + * with -EEXIST. If %XATTR_REPLACE is set, the xattr should exist; + * otherwise, fails with -ENODATA. + * + * Returns 0 on success, -errno on failure. */ int simple_xattr_set(struct simple_xattrs *xattrs, const char *name, const void *value, size_t size, int flags) @@ -950,6 +961,9 @@ ssize_t simple_xattr_list(struct simple_xattrs *xattrs, char *buffer, return used; } +/* + * Adds an extended attribute to the list + */ void simple_xattr_list_add(struct simple_xattrs *xattrs, struct simple_xattr *new_xattr) { |