diff options
author | Hugh Dickins <hughd@google.com> | 2012-06-01 06:15:28 +0200 |
---|---|---|
committer | Theodore Ts'o <tytso@mit.edu> | 2012-06-01 06:15:28 +0200 |
commit | 5e44f8c374dc4f8eadf61cd18b2c0d46bc87c1b7 (patch) | |
tree | ccecc6ddd068b809de59b45abe7714ee47076d95 /arch/arm/mach-exynos/include/mach/regs-clock.h | |
parent | jbd2: use kmem_cache_zalloc wrapper instead of flag (diff) | |
download | linux-5e44f8c374dc4f8eadf61cd18b2c0d46bc87c1b7.tar.xz linux-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 'arch/arm/mach-exynos/include/mach/regs-clock.h')
0 files changed, 0 insertions, 0 deletions