From ff46d7b3e0870a70331b069372c36fbc43018c2d Mon Sep 17 00:00:00 2001 From: Adrian Hunter <ext-adrian.hunter@nokia.com> Date: Mon, 21 Jul 2008 15:39:05 +0300 Subject: UBIFS: make ubifs_ro_mode() not inline We use ubifs_ro_mode() quite a lot, and not in fast-path, so there is no reason to blow the code up by having it inlined. Also, we usually want R/O mode change to be seen to other CPUs as soon as possible, so when we make this a function call, we will automatically have a memory barrier. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> --- fs/ubifs/io.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'fs/ubifs/io.c') diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c index 3374f91b670..054363f2b20 100644 --- a/fs/ubifs/io.c +++ b/fs/ubifs/io.c @@ -53,6 +53,20 @@ #include <linux/crc32.h> #include "ubifs.h" +/** + * ubifs_ro_mode - switch UBIFS to read read-only mode. + * @c: UBIFS file-system description object + * @err: error code which is the reason of switching to R/O mode + */ +void ubifs_ro_mode(struct ubifs_info *c, int err) +{ + if (!c->ro_media) { + c->ro_media = 1; + ubifs_warn("switched to read-only mode, error %d", err); + dbg_dump_stack(); + } +} + /** * ubifs_check_node - check node. * @c: UBIFS file-system description object -- cgit v1.2.3