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(parent: 3eb0865) | patch
ext4: punch hole optimizations: skip un-needed extent lookup
authorAllison Henderson <achender@linux.vnet.ibm.com>
Mon, 18 Jul 2011 03:17:02 +0000 (23:17 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 18 Jul 2011 03:17:02 +0000 (23:17 -0400)
commitf7d0d3797fac6cad24ad9f86dd9baf65c586b434
tree73ae5f70c194399f9c8273d6681e7534400ffdc0tree | snapshot
parent3eb08658431abd65c0fe6855d1860859c2d416f7commit | diff
ext4: punch hole optimizations: skip un-needed extent lookup

This patch optimizes the punch hole operation by skipping the
tree walking code that is used by truncate.  Since punch hole
is done through map blocks, the path to the extent is already
known in this function, so we do not need to look it up again.

Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/extents.c diff | blob | history
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