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Date: Sat, 26 Jan 2008 14:12:47 +0530 From: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com> To: Theodore Tso <tytso@....edu>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org> Subject: Re: [PATCH 36/49] ext4: Add EXT4_IOC_MIGRATE ioctl On Fri, Jan 25, 2008 at 11:15:00PM -0500, Theodore Tso wrote: > On Thu, Jan 24, 2008 at 11:25:32AM +0530, Aneesh Kumar K.V wrote: > > +static int free_ext_idx(handle_t *handle, struct inode *inode, > > + struct ext4_extent_idx *ix) > > +{ > > + int i, retval = 0; > > + ext4_fsblk_t block; > > + struct buffer_head *bh; > > + struct ext4_extent_header *eh; > > + > > + block = idx_pblock(ix); > > + bh = sb_bread(inode->i_sb, block); > > + if (!bh) > > + return -EIO; > > + > > + eh = (struct ext4_extent_header *)bh->b_data; > > + if (eh->eh_depth == 0) { > > + brelse(bh); > > + ext4_free_blocks(handle, inode, block, 1); > > + } else { > > + ix = EXT_FIRST_INDEX(eh); > > + for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ix++) { > > + retval = free_ext_idx(handle, inode, ix); > > + if (retval) > > + return retval; > > + } > > + } > > + return retval; > > +} > > Aneesh, looks like if eh->eh_depth is != 0, bh gets leaked. This is > how I plan to fix it up: > > +static int free_ext_idx(handle_t *handle, struct inode *inode, > + struct ext4_extent_idx *ix) > +{ > + int i, retval = 0; > + ext4_fsblk_t block; > + struct buffer_head *bh; > + struct ext4_extent_header *eh; > + > + block = idx_pblock(ix); > + bh = sb_bread(inode->i_sb, block); > + if (!bh) > + return -EIO; > + > + eh = (struct ext4_extent_header *)bh->b_data; > + if (eh->eh_depth == 0) > + ext4_free_blocks(handle, inode, block, 1); > + else { > + ix = EXT_FIRST_INDEX(eh); > + for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ix++) { > + retval = free_ext_idx(handle, inode, ix); > + if (retval) > + break; > + } > + } > + put_bh(bh); We need to mark the index block as free. via ext4_free_blocks(handle, inode, block, 1); I remember making this change. May be it was related to dind/tind blocks. -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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