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authorAristeu Rozanski <aris@redhat.com>2012-09-11 16:28:11 -0400
committerTejun Heo <tj@kernel.org>2012-09-13 11:08:47 -0700
commit4895768b6aab55bbdbebcf2da090cb1a5ccf5463 (patch)
treed28dd72460784469e1f3945295197be4d8166bd3 /fs/xattr.c
parent19ec2567e0a5fe64f4404ad6df697894aec8c493 (diff)
downloadvexpress-lsk-4895768b6aab55bbdbebcf2da090cb1a5ccf5463.tar.gz
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.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index e17e773517e..f053c1135d0 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)
{