diff options
| author |   Hugh Dickins <hughd@google.com> | 2012-06-01 00:15:28 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2012-06-01 00:15:28 -0400 |
| commit | 5e44f8c374dc4f8eadf61cd18b2c0d46bc87c1b7 (patch) | |
| tree | ccecc6ddd068b809de59b45abe7714ee47076d95 /fs | |
| parent | jbd2: use kmem_cache_zalloc wrapper instead of flag (diff) | |
| download | linux-dev-5e44f8c374dc4f8eadf61cd18b2c0d46bc87c1b7.tar.xz linux-dev-5e44f8c374dc4f8eadf61cd18b2c0d46bc87c1b7.zip | |
ext4: hole-punch use truncate_pagecache_range
When truncating a file, we unmap pages from userspace first, as that's
usually more efficient than relying, page by page, on the fallback in
truncate_inode_page() - particularly if the file is mapped many times.
Do the same when punching a hole: 3.4 added truncate_pagecache_range()
to do the unmap and trunc, so use it in ext4_ext_punch_hole(), instead
of calling truncate_inode_pages_range() directly.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | 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 496151f893eb..91341ec6e06a 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4789,8 +4789,8 @@ int ext4_ext_punch_hole(struct file *file, loff_t offset, loff_t length) /* Now release the pages */ if (last_page_offset > first_page_offset) { - truncate_inode_pages_range(mapping, first_page_offset, - last_page_offset-1); + truncate_pagecache_range(inode, first_page_offset, + last_page_offset - 1); } /* finish any pending end_io work */ |