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  1. 21 May, 2009 2 commits
    • Steven Whitehouse's avatar
      GFS2: Be more aggressive in reclaiming unlinked inodes · 1ce97e56
      Steven Whitehouse authored 
      This patch increases the frequency with which gfs2 looks
for unlinked, but still allocated inodes. Its the equivalent
operation to ext3's orphan list, but done with bitmaps in
the resource groups.

This also fixes a bug where a field in the rgrp was too small.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      1ce97e56
    • Steven Whitehouse's avatar
      GFS2: Add a rgrp bitmap full flag · 60a0b8f9
      Steven Whitehouse authored 
      During block allocation, it is useful to know if sections of disk
are full on a finer grained basis than a single resource group.
This can make a performance difference when resource groups have
larger numbers of bitmap blocks, since we no longer have to search
them all block by block in each individual bitmap.

The full flag is set on a per-bitmap basis when it has been
searched and found to have no free space. It is then skipped in
subsequent searches until the flag is reset. The resetting
occurs if we have to drop the glock on the resource group for any
reason, or if we deallocate some blocks within that resource
group and thus free up some space.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      60a0b8f9
  3. 20 May, 2009 1 commit
    • Steven Whitehouse's avatar
      GFS2: Improve resource group error handling · 09010978
      Steven Whitehouse authored 
      This patch improves the error handling in the case where we
discover that the summary information in the resource group
doesn't match the bitmap information while in the process of
allocating blocks. Originally this resulted in a kernel bug,
but this patch changes that so that we return -EIO and print
some messages explaining what went wrong, and how to fix it.

We also remember locally not to try and allocate from the
same rgrp again, so that a subsequent allocation in a
different rgrp should succeed.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      09010978
  5. 19 May, 2009 3 commits
    • Steven Whitehouse's avatar
      GFS2: Don't warn when delete inode fails on ro filesystem · ef9e8b14
      Steven Whitehouse authored 
      If the filesystem is read-only, then we expect that delete inode
will fail, so there is no need to warn about it.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      ef9e8b14
    • Steven Whitehouse's avatar
      GFS2: Update docs · e9ccb73a
      Steven Whitehouse authored 
      Update a few things which were out of date, and fix a typo.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      e9ccb73a
    • Steven Whitehouse's avatar
      GFS2: Umount recovery race fix · fe64d517
      Steven Whitehouse authored 
      This patch fixes a race condition where we can receive recovery
requests part way through processing a umount. This was causing
problems since the recovery thread had already gone away.

Looking in more detail at the recovery code, it was really trying
to implement a slight variation on a work queue, and that happens to
align nicely with the recently introduced slow-work subsystem. As a
result I've updated the code to use slow-work, rather than its own home
grown variety of work queue.

When using the wait_on_bit() function, I noticed that the wait function
that was supplied as an argument was appearing in the WCHAN field, so
I've updated the function names in order to produce more meaningful
output.
Signed-off-by: default avatarSteven Whitehouse <swhiteho@redhat.com>
      fe64d517
  7. 13 May, 2009 3 commits
  9. 12 May, 2009 1 commit
  11. 11 May, 2009 3 commits
  13. 10 May, 2009 12 commits
  15. 09 May, 2009 15 commits