Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Mon, 25 Nov 2013 13:44:29 +0000 | Subject | [PATCH 3.2 64/87] vfs: allow O_PATH file descriptors for fstatfs() |
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3.2.53-rc1 review patch. If anyone has any objections, please let me know.
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From: Linus Torvalds <torvalds@linux-foundation.org>
commit 9d05746e7b16d8565dddbe3200faa1e669d23bbf upstream.
Olga reported that file descriptors opened with O_PATH do not work with fstatfs(), found during further development of ksh93's thread support.
There is no reason to not allow O_PATH file descriptors here (fstatfs is very much a path operation), so use "fdget_raw()". See commit 55815f70147d ("vfs: make O_PATH file descriptors usable for 'fstat()'") for a very similar issue reported for fstat() by the same team.
Reported-and-tested-by: ольга крыжановская <olga.kryzhanovska@gmail.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [bwh: Backported to 3.2: use fget_raw() not fdget_raw()] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- fs/statfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/statfs.c +++ b/fs/statfs.c @@ -86,7 +86,7 @@ int user_statfs(const char __user *pathn int fd_statfs(int fd, struct kstatfs *st) { - struct file *file = fget(fd); + struct file *file = fget_raw(fd); int error = -EBADF; if (file) { error = vfs_statfs(&file->f_path, st); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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