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(parent: dfc209c) | patch
fat: Fix _fat_bmap() race
authorOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Thu, 6 Nov 2008 20:53:56 +0000 (12:53 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 6 Nov 2008 23:41:21 +0000 (15:41 -0800)
commitfa93ca18a8b0da4e26bd9491ad144cd14d22f8ec
tree2950aa2baa218493329873a61aa234c7fcc5d83etree | snapshot (tar.gz zip)
parentdfc209c0064efef5590f608056a48b61a5cac09ccommit | diff
fat: Fix _fat_bmap() race

fat_get_cluster() assumes the requested blocknr isn't truncated during
read. _fat_bmap() doesn't follow this rule.

This protects it by ->i_mutex.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/fat/inode.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)