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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-03-10 15:26:32 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-03-11 09:52:07 +0100 |
| commit | 2bcf002159c2aedd5c0ab5a21c3ea73fec87ff8d (patch) | |
| tree | a3218befd44eb549cc915044e23c85c6bacf5986 /fs/ubifs | |
| parent | UBIFS: simplify UBIFS Kconfig menu (diff) | |
| download | linux-2bcf002159c2aedd5c0ab5a21c3ea73fec87ff8d.tar.xz linux-2bcf002159c2aedd5c0ab5a21c3ea73fec87ff8d.zip | |
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.c | 1 |
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; |