In old code, ext4 will find extent in cache first even flags does
not contian PUNCH_OUT, that may waste some time.

Signed-off-by: Robin Dong <redacted>
Reviewed-by: Lukas Czerner <redacted>
---
 fs/ext4/extents.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index eb63c7b..fed2633 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c

@@ -3358,8 +3358,8 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,

       trace_ext4_ext_map_blocks_enter(inode, map->m_lblk, map->m_len, flags);

       /* check in cache */
-       if (ext4_ext_in_cache(inode, map->m_lblk, &newex) &&
-               ((flags & EXT4_GET_BLOCKS_PUNCH_OUT_EXT) == 0)) {
+       if (!(flags & EXT4_GET_BLOCKS_PUNCH_OUT_EXT) &&
+               ext4_ext_in_cache(inode, map->m_lblk, &newex)) {
               if (!newex.ee_start_lo && !newex.ee_start_hi) {
                       if ((flags & EXT4_GET_BLOCKS_CREATE) == 0) {
                               /*
--
1.7.1

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