From f391475812ba39afa322c835217ffe936f5e754a Mon Sep 17 00:00:00 2001 From: Evgeniy Dushistov Date: Sun, 25 Jun 2006 05:47:28 -0700 Subject: [PATCH] ufs: missed brelse and wrong baseblk This patch fixes two bugs, which introduced by previous patches: 1) Missed "brelse" 2) Sometimes "baseblk" may be wrongly calculated, if i_size is equal to zero, which lead infinite cycle in "mpage_writepages". Signed-off-by: Evgeniy Dushistov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ufs/balloc.c | 12 +++++------- fs/ufs/inode.c | 1 + 2 files changed, 6 insertions(+), 7 deletions(-) (limited to 'fs') diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c index ac709e70f646..99d881812ad8 100644 --- a/fs/ufs/balloc.c +++ b/fs/ufs/balloc.c @@ -269,20 +269,17 @@ out: * We can come here from ufs_writepage or ufs_prepare_write, * locked_page is argument of these functions, so we already lock it. */ -static void ufs_change_blocknr(struct inode *inode, unsigned int count, - unsigned int oldb, unsigned int newb, - struct page *locked_page) +static void ufs_change_blocknr(struct inode *inode, unsigned int baseblk, + unsigned int count, unsigned int oldb, + unsigned int newb, struct page *locked_page) { unsigned int blk_per_page = 1 << (PAGE_CACHE_SHIFT - inode->i_blkbits); - sector_t baseblk; struct address_space *mapping = inode->i_mapping; pgoff_t index, cur_index = locked_page->index; unsigned int i, j; struct page *page; struct buffer_head *head, *bh; - baseblk = ((i_size_read(inode) - 1) >> inode->i_blkbits) + 1 - count; - UFSD("ENTER, ino %lu, count %u, oldb %u, newb %u\n", inode->i_ino, count, oldb, newb); @@ -439,7 +436,8 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment, } result = ufs_alloc_fragments (inode, cgno, goal, request, err); if (result) { - ufs_change_blocknr(inode, oldcount, tmp, result, locked_page); + ufs_change_blocknr(inode, fragment - oldcount, oldcount, tmp, + result, locked_page); *p = cpu_to_fs32(sb, result); *err = 0; diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 72282043a8f4..01c5f19cbabe 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -175,6 +175,7 @@ ufs_clear_frags(struct inode *inode, sector_t beg, for (++beg; beg < end; ++beg) { bh = sb_getblk(inode->i_sb, beg); ufs_clear_frag(inode, bh); + brelse(bh); } return res; } -- cgit v1.2.3