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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 20:50:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 20:50:27 -0700
commit149e703cb8bfcbdae46140b108bb6f7d2407df8f (patch)
tree6fdea7cdd4fb54a272cb7dc3c46cb9f2b84059e9 /fs/libfs.c
parentd897166d8598e362a31d79dfd9a1e2eedb9ac85c (diff)
parent6ee9706aa22e026f438caabb2982e5f78de2c82c (diff)
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro: "Assorted stuff, with no common topic whatsoever..." * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: libfs: document simple_get_link() Documentation/filesystems/Locking: fix ->get_link() prototype Documentation/filesystems/vfs.txt: document how ->i_link works Documentation/filesystems/vfs.txt: remove bogus "Last updated" date fs: use timespec64 in relatime_need_update fs/block_dev.c: remove unused include
Diffstat (limited to 'fs/libfs.c')
-rw-r--r--fs/libfs.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 9efb647917e0..4b59b1816efb 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1169,6 +1169,20 @@ simple_nosetlease(struct file *filp, long arg, struct file_lock **flp,
}
EXPORT_SYMBOL(simple_nosetlease);
+/**
+ * simple_get_link - generic helper to get the target of "fast" symlinks
+ * @dentry: not used here
+ * @inode: the symlink inode
+ * @done: not used here
+ *
+ * Generic helper for filesystems to use for symlink inodes where a pointer to
+ * the symlink target is stored in ->i_link. NOTE: this isn't normally called,
+ * since as an optimization the path lookup code uses any non-NULL ->i_link
+ * directly, without calling ->get_link(). But ->get_link() still must be set,
+ * to mark the inode_operations as being for a symlink.
+ *
+ * Return: the symlink target
+ */
const char *simple_get_link(struct dentry *dentry, struct inode *inode,
struct delayed_call *done)
{