linux-ext4 - [EXT4 set 9][PATCH 5/5]Extent micro cleanups

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 01 Jul 2007 03:38:59 -0400
From:	Mingming Cao <cmm@...ibm.com>
To:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org
Subject: [EXT4 set 9][PATCH 5/5]Extent micro cleanups

From: Dmitry Monakhov <dmonakhov@...ru>
Subject: ext4: extent macros cleanup

- Replace math equation to it's macro equivalent
- make ext4_ext_grow_indepth() indexes/leaf correct

Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
Acked-by: Alex Tomas <alex@...sterfs.com>
Signed-off-by: Dave Kleikamp <shaggy@...ux.vnet.ibm.com>
---
 fs/ext4/extents.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 12fe3d7..1fd00ac 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -375,7 +375,7 @@ ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int bloc
 	ext_debug("binsearch for %d(idx):  ", block);

 	l = EXT_FIRST_INDEX(eh) + 1;
-	r = EXT_FIRST_INDEX(eh) + le16_to_cpu(eh->eh_entries) - 1;
+	r = EXT_LAST_INDEX(eh);
 	while (l <= r) {
 		m = l + (r - l) / 2;
 		if (block < le32_to_cpu(m->ei_block))
@@ -440,7 +440,7 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block)
 	ext_debug("binsearch for %d:  ", block);

 	l = EXT_FIRST_EXTENT(eh) + 1;
-	r = EXT_FIRST_EXTENT(eh) + le16_to_cpu(eh->eh_entries) - 1;
+	r = EXT_LAST_EXTENT(eh);

 	while (l <= r) {
 		m = l + (r - l) / 2;
@@ -922,8 +922,11 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
 	curp->p_hdr->eh_max = cpu_to_le16(ext4_ext_space_root_idx(inode));
 	curp->p_hdr->eh_entries = cpu_to_le16(1);
 	curp->p_idx = EXT_FIRST_INDEX(curp->p_hdr);
-	/* FIXME: it works, but actually path[0] can be index */
-	curp->p_idx->ei_block = EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block;
+	
+	if (path[0].p_hdr->eh_depth)
+	  curp->p_idx->ei_block = EXT_FIRST_INDEX(path[0].p_hdr)->ei_block;
+	else
+	  curp->p_idx->ei_block = EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block;
 	ext4_idx_store_pblock(curp->p_idx, newblock);

 	neh = ext_inode_hdr(inode);


-
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html