From: Aneesh Kumar K.V Date: Tue, 6 Jan 2009 02:48:56 +0000 (-0500) Subject: ext4: Init the complete page while building buddy cache X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=29eaf024980e07cc01f31ae4ea5d68c917f4b7da;p=linux-2.6-omap-h63xx.git ext4: Init the complete page while building buddy cache We need to init the complete page during buddy cache init by setting the contents to '1'. Otherwise we can see the following errors after doing an online resize of the filesystem: EXT4-fs error (device sdb1): ext4_mb_mark_diskspace_used: Allocating block 1040385 in system zone of 127 group Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o" Cc: stable@kernel.org --- diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 0c7e247f714..fd2294de404 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -846,6 +846,8 @@ static int ext4_mb_init_cache(struct page *page, char *incore) err = 0; first_block = page->index * blocks_per_page; + /* init the page */ + memset(page_address(page), 0xff, PAGE_CACHE_SIZE); for (i = 0; i < blocks_per_page; i++) { int group; struct ext4_group_info *grinfo; @@ -872,7 +874,6 @@ static int ext4_mb_init_cache(struct page *page, char *incore) BUG_ON(incore == NULL); mb_debug("put buddy for group %u in page %lu/%x\n", group, page->index, i * blocksize); - memset(data, 0xff, blocksize); grinfo = ext4_get_group_info(sb, group); grinfo->bb_fragments = 0; memset(grinfo->bb_counters, 0,