Theodore Ts'o f4afb4f4e3 ext4: optimize test_root() ...

The test_root() function could potentially loop forever due to
overflow issues.  So rewrite test_root() to avoid this issue; as a
bonus, it is 38% faster when benchmarked via a test loop:

int main(int argc, char **argv)
{
	int  i;

	for (i = 0; i < 1 << 24; i++) {
		if (test_root(i, 7))
			printf("%d\n", i);
	}
}

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

2013-06-06 11:40:37 -04:00

..

acl.c

ext4: fix the number of credits needed for acl ops with inline data

2013-02-09 15:23:03 -05:00

acl.h

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

balloc.c

ext4: optimize test_root()

2013-06-06 11:40:37 -04:00

bitmap.c

ext4: Checksum the block bitmap properly with bigalloc enabled

2012-10-22 00:34:32 -04:00

block_validity.c

ext2/3/4: delete unneeded includes of module.h

2012-01-09 13:52:10 +01:00

dir.c

ext4: fix readdir error in the case of inline_data+dir_index

2013-04-19 17:53:09 -04:00

ext4_extents.h

ext4: mext_insert_extents should update extent block checksum

2013-04-19 14:04:12 -04:00

ext4_jbd2.c

ext4: provide wrappers for transaction reservation calls

2013-06-04 12:37:50 -04:00

ext4_jbd2.h

ext4: use transaction reservation for extent conversion in ext4_end_io

2013-06-04 13:21:11 -04:00

ext4.h

ext4: add sanity check to ext4_get_group_info()

2013-06-06 11:16:43 -04:00

extents_status.c

ext4: fix fio regression

2013-05-03 02:15:52 -04:00

extents_status.h

ext4: fix fio regression

2013-05-03 02:15:52 -04:00

extents.c

ext4: use transaction reservation for extent conversion in ext4_end_io

2013-06-04 13:21:11 -04:00

file.c

ext4: fix overflows in SEEK_HOLE, SEEK_DATA implementations

2013-05-31 19:37:56 -04:00

fsync.c

ext4: remove i_mutex from ext4_file_sync()

2013-06-04 14:40:39 -04:00

hash.c

ext4: reduce one "if" comparison in ext4_dirhash()

2013-02-01 22:33:21 -05:00

ialloc.c

ext4: provide wrappers for transaction reservation calls

2013-06-04 12:37:50 -04:00

indirect.c

ext4: Remove wait for unwritten extents in ext4_ind_direct_IO()

2013-06-04 14:41:29 -04:00

inline.c

ext4: fix data offset overflow on 32-bit archs in ext4_inline_data_fiemap()

2013-05-31 19:33:42 -04:00

inode.c

ext4: remove ext4_ioend_wait()

2013-06-04 14:46:12 -04:00

ioctl.c

ext4: fix usless declarations

2013-04-09 22:48:36 -04:00

Kconfig

ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG

2013-04-21 20:32:03 -04:00

Makefile

ext4: Remove CONFIG_EXT4_FS_XATTR

2012-12-10 16:30:43 -05:00

mballoc.c

Fixed regressions (two stability regressions and a performance

2013-05-14 09:30:54 -07:00

mballoc.h

ext4: use module parameters instead of debugfs for mballoc_debug

2013-02-09 16:28:20 -05:00

migrate.c

ext4: do not convert to indirect with bigalloc enabled

2013-04-11 10:54:46 -04:00

mmp.c

ext4: mark all metadata I/O with REQ_META

2013-04-20 15:46:17 -04:00

move_extent.c

ext4: mext_insert_extents should update extent block checksum

2013-04-19 14:04:12 -04:00

namei.c

ext4: fix readdir error in the case of inline_data+dir_index

2013-04-19 17:53:09 -04:00

page-io.c

ext4: add check to io_submit_init_bio

2013-06-06 10:18:22 -04:00

resize.c

ext4: verify group number in verify_group_input() before using it

2013-06-06 11:14:31 -04:00

super.c

ext4: split extent conversion lists to reserved & unreserved parts

2013-06-04 14:21:02 -04:00

symlink.c

ext4: Remove CONFIG_EXT4_FS_XATTR

2012-12-10 16:30:43 -05:00

truncate.h

ext4: move common truncate functions to header file

2011-06-27 19:16:04 -04:00

xattr_security.c

Merge branch 'for_linus' into for_linus_merged

2012-01-10 11:54:07 -05:00

xattr_trusted.c

ext2/3/4: delete unneeded includes of module.h

2012-01-09 13:52:10 +01:00

xattr_user.c

ext2/3/4: delete unneeded includes of module.h

2012-01-09 13:52:10 +01:00

xattr.c

ext4: fix miscellaneous big endian warnings

2013-04-09 23:59:55 -04:00

xattr.h

ext4: reserve xattr index for Rich ACL support

2013-04-18 14:53:15 -04:00