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ext4: correct the left/middle/right debug message for binsearch

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The debuginfo for binsearch want to show the left/middle/right extent
while the process search for the goal block. However we show this info
after we change right or left.

Link: https://lore.kernel.org/r/20210903062748.4118886-2-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
yangerkun 2021-09-03 14:27:46 +08:00 committed by Theodore Ts'o
parent 39fec6889d
commit 83c5688b89
1 changed files with 8 additions and 6 deletions
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14
fs/ext4/extents.c
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@ -714,13 +714,14 @@ ext4_ext_binsearch_idx(struct inode *inode,
r = EXT_LAST_INDEX(eh);
while (l <= r) {
m = l + (r - l) / 2;
ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
le32_to_cpu(l->ei_block), m, le32_to_cpu(m->ei_block),
r, le32_to_cpu(r->ei_block));
if (block < le32_to_cpu(m->ei_block))
r = m - 1;
else
l = m + 1;
ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
le32_to_cpu(l->ei_block), m, le32_to_cpu(m->ei_block),
r, le32_to_cpu(r->ei_block));
}
path->p_idx = l - 1;
@ -782,13 +783,14 @@ ext4_ext_binsearch(struct inode *inode,
while (l <= r) {
m = l + (r - l) / 2;
ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
le32_to_cpu(l->ee_block), m, le32_to_cpu(m->ee_block),
r, le32_to_cpu(r->ee_block));
if (block < le32_to_cpu(m->ee_block))
r = m - 1;
else
l = m + 1;
ext_debug(inode, "%p(%u):%p(%u):%p(%u) ", l,
le32_to_cpu(l->ee_block), m, le32_to_cpu(m->ee_block),
r, le32_to_cpu(r->ee_block));
}
path->p_ext = l - 1;