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(parent: 093a088) | patch
ext4: zero out small extents when writing to prealloc area.
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Thu, 17 Apr 2008 14:38:59 +0000 (10:38 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 17 Apr 2008 14:38:59 +0000 (10:38 -0400)
commit3977c965ec35ce1a7eac988ad313f0fc9aee9660
tree86c799189a7888d6ebd02f9394fd0c2bd4eb2317tree | snapshot (tar.gz zip)
parent093a088b76352e0a6fdca84eb78b3aa65fbe6dd1commit | diff
ext4: zero out small extents when writing to prealloc area.

If the preallocated area is small zero out the full extent
instead of splitting them. This should avoid the "write
every alternate block" problem that could grow the number
of extents dramatically.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/extents.c diff | blob | blame | history