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  1. 13 3月, 2009 2 次提交
  3. 12 3月, 2009 1 次提交
  5. 11 3月, 2009 2 次提交
  7. 09 3月, 2009 1 次提交
    • C
      Btrfs: fix spinlock assertions on UP systems · b9447ef8
      由 Chris Mason 提交于 
      btrfs_tree_locked was being used to make sure a given extent_buffer was
properly locked in a few places.  But, it wasn't correct for UP compiled
kernels.

This switches it to using assert_spin_locked instead, and renames it to
btrfs_assert_tree_locked to better reflect how it was really being used.
Signed-off-by: NChris Mason <chris.mason@oracle.com>
      b9447ef8
  9. 05 3月, 2009 3 次提交
  11. 28 2月, 2009 2 次提交
  13. 27 2月, 2009 9 次提交
  15. 26 2月, 2009 2 次提交
  17. 28 2月, 2009 2 次提交
    • T
      ext4: Reorder fs/Makefile so that ext2 root fs's are mounted using ext2 · d8ae4601
      由 Theodore Ts'o 提交于 
      In fs/Makefile, ext3 was placed before ext2 so that a root filesystem
that possessed a journal, it would be mounted as ext3 instead of ext2.
This was necessary because a cleanly unmounted ext3 filesystem was
fully backwards compatible with ext2, and could be mounted by ext2 ---
but it was desirable that it be mounted with ext3 so that the
journaling would be enabled.

The ext4 filesystem supports new incompatible features, so there is no
danger of an ext4 filesystem being mistaken for an ext2 filesystem.
At that point, the relative ordering of ext4 with respect to ext2
didn't matter until ext4 gained the ability to mount filesystems
without a journal starting in 2.6.29-rc1.  Now that this is the case,
given that ext4 is before ext2, it means that root filesystems that
were using the plain-jane ext2 format are getting mounted using the
ext4 filesystem driver, which is a change in behavior which could be
surprising to users.

It's doubtful that there are that many ext2-only root filesystem users
that would also have ext4 compiled into the kernel, but to adhere to
the principle of least surprise, the correct ordering in fs/Makefile
is ext3, followed by ext2, and finally ext4.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      d8ae4601
    • T
      ext4: Remove duplicate call to ext4_commit_super() in ext4_freeze() · 8b1a8ff8
      由 Theodore Ts'o 提交于 
      Commit c4be0c1d added error checking to ext4_freeze() when calling
ext4_commit_super().  Unfortunately the patch failed to remove the
original call to ext4_commit_super(), with the net result that when
freezing the filesystem, the superblock gets written twice, the first
time without error checking.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      8b1a8ff8
  19. 25 2月, 2009 1 次提交
  21. 24 2月, 2009 1 次提交
  23. 23 2月, 2009 1 次提交
  25. 22 2月, 2009 1 次提交
    • T
      ext4: Add fallback for find_group_flex · 05bf9e83
      由 Theodore Ts'o 提交于 
      This is a workaround for find_group_flex() which badly needs to be
replaced.  One of its problems (besides ignoring the Orlov algorithm)
is that it is a bit hyperactive about returning failure under
suspicious circumstances.  This can lead to spurious ENOSPC failures
even when there are inodes still available.

Work around this for now by retrying the search using
find_group_other() if find_group_flex() returns -1.  If
find_group_other() succeeds when find_group_flex() has failed, log a
warning message.

A better block/inode allocator that will fix this problem for real has
been queued up for the next merge window.
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      05bf9e83
  27. 21 2月, 2009 8 次提交
  29. 20 2月, 2009 1 次提交
    • J
      Btrfs: try committing transaction before returning ENOSPC · 4e06bdd6
      由 Josef Bacik 提交于 
      This fixes a problem where we could return -ENOSPC when we may actually have
plenty of space, the space is just pinned.  Instead of returning -ENOSPC
immediately, commit the transaction first and then try and do the allocation
again.

This patch also does chunk allocation for metadata if we pass the 80%
threshold for metadata space.  This will help with stack usage since the chunk
allocation will happen early on, instead of when the allocation is happening.
Signed-off-by: NJosef Bacik <jbacik@redhat.com>
      4e06bdd6
  31. 21 2月, 2009 1 次提交
    • J
      Btrfs: add better -ENOSPC handling · 6a63209f
      由 Josef Bacik 提交于 
      This is a step in the direction of better -ENOSPC handling.  Instead of
checking the global bytes counter we check the space_info bytes counters to
make sure we have enough space.

If we don't we go ahead and try to allocate a new chunk, and then if that fails
we return -ENOSPC.  This patch adds two counters to btrfs_space_info,
bytes_delalloc and bytes_may_use.

bytes_delalloc account for extents we've actually setup for delalloc and will
be allocated at some point down the line. 

bytes_may_use is to keep track of how many bytes we may use for delalloc at
some point.  When we actually set the extent_bit for the delalloc bytes we
subtract the reserved bytes from the bytes_may_use counter.  This keeps us from
not actually being able to allocate space for any delalloc bytes.
Signed-off-by: NJosef Bacik <jbacik@redhat.com>
      6a63209f
  33. 20 2月, 2009 2 次提交