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(parent: 8cef107) | patch
ext2: Avoid loading bitmaps for full groups during block allocation
authorJan Kara <jack@suse.cz>
Mon, 29 Mar 2010 11:55:39 +0000 (13:55 +0200)
committerJan Kara <jack@suse.cz>
Fri, 21 May 2010 17:30:37 +0000 (19:30 +0200)
commit46891532370e862d6bddedef9e6ca22a59a51fa4
tree0e4d6128f7f4a1f67d6c3ede3504100ec5d5ee7atree | snapshot
parent8cef107a1d890ff76c85d665083ff3562be01d32commit | diff
ext2: Avoid loading bitmaps for full groups during block allocation

There is no point in loading bitmap for groups which are completely full.
This causes noticeable performance problems (and memory pressure) on small
systems with large full filesystem
(http://marc.info/?l=linux-ext4&m=126843108314310&w=2).

Port of the same ext3 patch.

Signed-off-by: Jan Kara <jack@suse.cz>
fs/ext2/balloc.c diff | blob | history
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