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ext4: no need to continue when the number of entries is 1

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Fixes: ac27a0ec11 ("[PATCH] ext4: initial copy of files from ext3")
Reported-by: syzbot+ae688d469e36fb5138d0@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=ae688d469e36fb5138d0
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Reported-and-tested-by: syzbot+ae688d469e36fb5138d0@syzkaller.appspotmail.com
Link: https://patch.msgid.link/tencent_BE7AEE6C7C2D216CB8949CE8E6EE7ECC2C0A@qq.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
This commit is contained in:
Edward Adam Davis
2024-07-01 22:25:03 +08:00
committed by Theodore Ts'o
parent 70dd7b573a
commit 1a00a393d6
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/namei.c
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@@ -1999,7 +1999,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
split = count/2;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
continued = split > 0 ? hash2 == map[split - 1].hash : 0;
dxtrace(printk(KERN_INFO "Split block %lu at %x, %i/%i\n",
(unsigned long)dx_get_block(frame->at),
hash2, split, count-split));