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[XFS] fix biosize option

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iosizelog shouldn't be the same as iosize but the logarithm of it. Then
again the current biosize option doesn't make much sense to me as it
doesn't set the preferred I/O size as mentioned in the comment next to it
but rather the allocation size and thus is identical to the allocsize
option (except for the missing logarithm). It's also not documented in
Documentation/filesystems/xfs.txt or the mount manpage.

SGI-PV: 987246

SGI-Modid: xfs-linux-melb:xfs-kern:32373a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
Christoph Hellwig 2008-10-30 17:55:08 +11:00 committed by Lachlan McIlroy
parent 469fc23d5d
commit 1ec7944beb
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/linux-2.6/xfs_super.c
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@ -270,7 +270,7 @@ xfs_parseargs(
return EINVAL;
}
iosize = simple_strtoul(value, &eov, 10);
iosizelog = (uint8_t) iosize;
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,