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fs: add missing documentation to simple_xattr functions

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v2: add function documentation instead of adding a separate file under
    Documentation/

tj: Updated comment a bit and rolled in Randy's suggestions.

Change-Id: I2be6be5f4987127c354e2cca490876085ceaea45
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>
This commit is contained in:
Aristeu Rozanski 2012-09-11 16:28:11 -04:00 committed by surblazer
parent 27d09160b6
commit eb39b11c9b
1 changed files with 16 additions and 2 deletions
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18
fs/xattr.c
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@ -884,8 +884,19 @@ 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, int simple_xattr_set(struct simple_xattrs *xattrs, const char *name,
const void *value, size_t size, int flags) const void *value, size_t size, int flags)
@ -942,6 +953,9 @@ ssize_t simple_xattr_list(struct simple_xattrs *xattrs, char *buffer,
return used; return used;
} }
/*
* Adds an extended attribute to the list
*/
void simple_xattr_list_add(struct simple_xattrs *xattrs, void simple_xattr_list_add(struct simple_xattrs *xattrs,
struct simple_xattr *new_xattr) struct simple_xattr *new_xattr)
{ {