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Merge tag 'exportfs-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux

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Merge exportfs fixes from Chuck Lever:

* tag 'exportfs-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  fs: Create a generic is_dot_dotdot() utility
  exportfs: fix the fallback implementation of the get_name export operation

Link: https://lore.kernel.org/r/BDC2AEB4-7085-4A7C-8DE8-A659FE1DBA6A@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2024-01-23 17:25:51 +01:00
parent bd46543d7f 42c3732fa8
commit 0000ff2523
6 changed files with 15 additions and 33 deletions
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11
include/linux/fs.h
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@@ -2928,6 +2928,17 @@ extern bool path_is_under(const struct path *, const struct path *);
extern char *file_path(struct file *, char *, int);
/**
* is_dot_dotdot - returns true only if @name is "." or ".."
* @name: file name to check
* @len: length of file name, in bytes
*/
static inline bool is_dot_dotdot(const char *name, size_t len)
{
return len && unlikely(name[0] == '.') &&
(len == 1 || (len == 2 && name[1] == '.'));
}
#include <linux/err.h>
/* needed for stackable file system support */