Messages in this thread Patch in this message | | | From | Nate Diller <> | Date | Tue, 10 Apr 2007 20:36:00 -0700 | Subject | [PATCH 4/13] ext3: use zero_user_page |
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Use zero_user_page() instead of open-coding it.
Signed-off-by: Nate Diller <nate.diller@gmail.com>
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diff -urpN -X dontdiff linux-2.6.21-rc6-mm1/fs/ext3/inode.c linux-2.6.21-rc6-mm1-test/fs/ext3/inode.c --- linux-2.6.21-rc6-mm1/fs/ext3/inode.c 2007-04-09 17:24:03.000000000 -0700 +++ linux-2.6.21-rc6-mm1-test/fs/ext3/inode.c 2007-04-09 18:18:23.000000000 -0700 @@ -1767,7 +1767,6 @@ static int ext3_block_truncate_page(hand struct inode *inode = mapping->host; struct buffer_head *bh; int err = 0; - void *kaddr; blocksize = inode->i_sb->s_blocksize; length = blocksize - (offset & (blocksize - 1)); @@ -1779,10 +1778,7 @@ static int ext3_block_truncate_page(hand */ if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode) && PageUptodate(page)) { - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, length); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); + zero_user_page(page, offset, length); set_page_dirty(page); goto unlock; } @@ -1835,11 +1831,7 @@ static int ext3_block_truncate_page(hand goto unlock; } - kaddr = kmap_atomic(page, KM_USER0); - memset(kaddr + offset, 0, length); - flush_dcache_page(page); - kunmap_atomic(kaddr, KM_USER0); - + zero_user_page(page, offset, length); BUFFER_TRACE(bh, "zeroed end of block"); err = 0; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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