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  1. 28 6月, 2011 5 次提交
    • T
      ext4: move __ext4_check_blockref to block_validity.c · 1f7d1e77
      由 Theodore Ts'o 提交于 
      In preparation for moving the indirect functions to a separate file,
move __ext4_check_blockref() to block_validity.c and rename it to
ext4_check_blockref() which is exported as globally visible function.

Also, rename the cpp macro ext4_check_inode_blockref() to
ext4_ind_check_inode(), to make it clear that it is only valid for use
with non-extent mapped inodes.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      1f7d1e77
    • A
      ext4: rename ext4_indirect_* funcs to ext4_ind_* · 8bb2b247
      由 Amir Goldstein 提交于 
      We are going to move all ext4_ind_* functions to indirect.c.
Before we do that, let's rename 2 functions called ext4_indirect_*
to ext4_ind_*, to keep to the naming convention.
Signed-off-by: NAmir Goldstein <amir73il@users.sf.net>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      8bb2b247
    • A
      ext4: split ext4_ind_truncate from ext4_truncate · ff9893dc
      由 Amir Goldstein 提交于 
      We are about to move all indirect inode functions to a new file.
Before we do that, let's split ext4_ind_truncate() out of ext4_truncate()
leaving only generic code in the latter, so we will be able to move
ext4_ind_truncate() to the new file.
Signed-off-by: NAmir Goldstein <amir73il@users.sf.net>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      ff9893dc
    • R
      ext4: fix incorrect error msg in ext4_ext_insert_index · ed7a7e16
      由 Robin Dong 提交于 
      In function ext4_ext_insert_index when eh_entries of curp is
bigger than eh_max, error messages will be printed out, but the content
is about logical and ei_block, that's incorret.
Signed-off-by: NRobin Dong <sanbai@taobao.com>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      ed7a7e16
    • T
      jbd2: use WRITE_SYNC in journal checkpoint · d3ad8434
      由 Tao Ma 提交于 
      In journal checkpoint, we write the buffer and wait for its finish.
But in cfq, the async queue has a very low priority, and in our test,
if there are too many sync queues and every queue is filled up with
requests, the write request will be delayed for quite a long time and
all the tasks which are waiting for journal space will end with errors like:

INFO: task attr_set:3816 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
attr_set      D ffff880028393480     0  3816      1 0x00000000
 ffff8802073fbae8 0000000000000086 ffff8802140847c8 ffff8800283934e8
 ffff8802073fb9d8 ffffffff8103e456 ffff8802140847b8 ffff8801ed728080
 ffff8801db4bc080 ffff8801ed728450 ffff880028393480 0000000000000002
Call Trace:
 [<ffffffff8103e456>] ? __dequeue_entity+0x33/0x38
 [<ffffffff8103caad>] ? need_resched+0x23/0x2d
 [<ffffffff814006a6>] ? thread_return+0xa2/0xbc
 [<ffffffffa01f6224>] ? jbd2_journal_dirty_metadata+0x116/0x126 [jbd2]
 [<ffffffffa01f6224>] ? jbd2_journal_dirty_metadata+0x116/0x126 [jbd2]
 [<ffffffff81400d31>] __mutex_lock_common+0x14e/0x1a9
 [<ffffffffa021dbfb>] ? brelse+0x13/0x15 [ext4]
 [<ffffffff81400ddb>] __mutex_lock_slowpath+0x19/0x1b
 [<ffffffff81400b2d>] mutex_lock+0x1b/0x32
 [<ffffffffa01f927b>] __jbd2_journal_insert_checkpoint+0xe3/0x20c [jbd2]
 [<ffffffffa01f547b>] start_this_handle+0x438/0x527 [jbd2]
 [<ffffffff8106f491>] ? autoremove_wake_function+0x0/0x3e
 [<ffffffffa01f560b>] jbd2_journal_start+0xa1/0xcc [jbd2]
 [<ffffffffa02353be>] ext4_journal_start_sb+0x57/0x81 [ext4]
 [<ffffffffa024a314>] ext4_xattr_set+0x6c/0xe3 [ext4]
 [<ffffffffa024aaff>] ext4_xattr_user_set+0x42/0x4b [ext4]
 [<ffffffff81145adb>] generic_setxattr+0x6b/0x76
 [<ffffffff81146ac0>] __vfs_setxattr_noperm+0x47/0xc0
 [<ffffffff81146bb8>] vfs_setxattr+0x7f/0x9a
 [<ffffffff81146c88>] setxattr+0xb5/0xe8
 [<ffffffff81137467>] ? do_filp_open+0x571/0xa6e
 [<ffffffff81146d26>] sys_fsetxattr+0x6b/0x91
 [<ffffffff81002d32>] system_call_fastpath+0x16/0x1b

So this patch tries to use WRITE_SYNC in __flush_batch so that the request will
be moved into sync queue and handled by cfq timely. We also use the new plug,
sot that all the WRITE_SYNC requests can be given as a whole when we unplug it.
Signed-off-by: NTao Ma <boyu.mt@taobao.com>
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
Cc: Jan Kara <jack@suse.cz>
Reported-by: NRobin Dong <sanbai@taobao.com>
      d3ad8434
  3. 22 6月, 2011 1 次提交
  5. 21 6月, 2011 13 次提交
  7. 20 6月, 2011 21 次提交