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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-10 17:26:32 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-11 11:52:07 +0300
commit2bcf002159c2aedd5c0ab5a21c3ea73fec87ff8d (patch)
treea3218befd44eb549cc915044e23c85c6bacf5986 /fs/ubifs
parentcce3f612fedcbeee61977497b99bbf68a4082b6b (diff)
downloadlinux-2bcf002159c2aedd5c0ab5a21c3ea73fec87ff8d.tar.xz
UBIFS: do not check data crc by default
Change the default UBIFS behavior WRT data CRC checking. Currently, UBIFS checks data CRC when reading, which slows it down quite a bit, and this is the default option. However, it looks like in average user does not need this feature and would prefer faster read speed over extra reliability. And this seems to be de-facto standard that file-systems do not check data CRC every time they read from the media. Thus, make UBIFS default behavior so that it does not check data CRC. This corresponds to the no_chk_data_crc mount option. Those users who need extra protection can always enable it using the chk_data_crc option. Please, read more information about this feature here: http://www.linux-mtd.infradead.org/doc/ubifs.html#L_checksumming Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index e9585ad90f5e..1da5155a1bea 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1977,6 +1977,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
INIT_LIST_HEAD(&c->old_buds);
INIT_LIST_HEAD(&c->orph_list);
INIT_LIST_HEAD(&c->orph_new);
+ c->no_chk_data_crc = 1;
c->vfs_sb = sb;
c->highest_inum = UBIFS_FIRST_INO;