From: Dan Carpenter Date: Thu, 26 May 2011 23:25:12 +0000 (-0700) Subject: ufs: fix truncated values handling 64 bit metadata X-Git-Tag: v3.0-rc1~111 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=1d5827235de48e829d5d4a03c3688ef6f2b15562 ufs: fix truncated values handling 64 bit metadata Originally i_lastfrag was 32 bits but then we added support for handling 64 bit metadata and it became a 64 bit variable. That was during 2007, in 54fb996ac15c "[PATCH] ufs2 write: block allocation update". Unfortunately these casts got left behind so the value got truncated to 32 bit again. [akpm@linux-foundation.org: remove now-unneeded min_t/max_t casting] Signed-off-by: Dan Carpenter Cc: Evgeniy Dushistov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c index 46f7a807bbc1..42694e11c23d 100644 --- a/fs/ufs/balloc.c +++ b/fs/ufs/balloc.c @@ -424,8 +424,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment, ufs_cpu_to_data_ptr(sb, p, result); *err = 0; UFS_I(inode)->i_lastfrag = - max_t(u32, UFS_I(inode)->i_lastfrag, - fragment + count); + max(UFS_I(inode)->i_lastfrag, fragment + count); ufs_clear_frags(inode, result + oldcount, newcount - oldcount, locked_page != NULL); } @@ -440,7 +439,8 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment, result = ufs_add_fragments (inode, tmp, oldcount, newcount, err); if (result) { *err = 0; - UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count); + UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag, + fragment + count); ufs_clear_frags(inode, result + oldcount, newcount - oldcount, locked_page != NULL); unlock_super(sb); @@ -479,7 +479,8 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment, uspi->s_sbbase + result, locked_page); ufs_cpu_to_data_ptr(sb, p, result); *err = 0; - UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count); + UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag, + fragment + count); unlock_super(sb); if (newcount < request) ufs_free_fragments (inode, result + newcount, request - newcount); diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c index 5f821dbc0579..f04f89fbd4d9 100644 --- a/fs/ufs/truncate.c +++ b/fs/ufs/truncate.c @@ -84,7 +84,7 @@ static int ufs_trunc_direct(struct inode *inode) retry = 0; frag1 = DIRECT_FRAGMENT; - frag4 = min_t(u32, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag); + frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag); frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1); frag3 = frag4 & ~uspi->s_fpbmask; block1 = block2 = 0;