linux-toradex.git/fs/gfs2, branch v5.0

Revert "gfs2: read journal in large chunks to locate the head"

2019-02-14T17:52:51+00:00

This reverts commit 2a5f14f279f59143139bcd1606903f2f80a34241.

This patch causes xfstests generic/311 to fail. Reverting this for
now until we have a proper fix.

Signed-off-by: Abhi Das 
Signed-off-by: Bob Peterson 
Signed-off-by: Linus Torvalds

gfs2: Revert "Fix loop in gfs2_rbm_find"

2019-01-31T19:45:11+00:00

This reverts commit 2d29f6b96d8f80322ed2dd895bca590491c38d34.

It turns out that the fix can lead to a ~20 percent performance regression
in initial writes to the page cache according to iozone.  Let's revert this
for now to have more time for a proper fix.

Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Bob Peterson 
Signed-off-by: Linus Torvalds

Merge tag 'locks-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux

2018-12-28T01:12:30+00:00

Pull file locking updates from Jeff Layton:
 "The main change in this set is Neil Brown's work to reduce the
  thundering herd problem when a heavily-contended file lock is
  released.

  Previously we'd always wake up all waiters when this occurred. With
  this set, we'll now we only wake up waiters that were blocked on the
  range being released"

* tag 'locks-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  locks: Use inode_is_open_for_write
  fs/locks: remove unnecessary white space.
  fs/locks: merge posix_unblock_lock() and locks_delete_block()
  fs/locks: create a tree of dependent requests.
  fs/locks: change all *_conflict() functions to return bool.
  fs/locks: always delete_block after waiting.
  fs/locks: allow a lock request to block other requests.
  fs/locks: use properly initialized file_lock when unlocking.
  ocfs2: properly initial file_lock used for unlock.
  gfs2: properly initial file_lock used for unlock.
  NFS: use locks_copy_lock() to copy locks.
  fs/locks: split out __locks_wake_up_blocks().
  fs/locks: rename some lists and pointers.

gfs2: take jdata unstuff into account in do_grow

2018-12-18T16:49:02+00:00

Before this patch, function do_grow would not reserve enough journal
blocks in the transaction to unstuff jdata files while growing them.
This patch adds the logic to add one more block if the file to grow
is jdata.

Signed-off-by: Bob Peterson 
Reviewed-by: Andreas Gruenbacher

gfs2: Dump nrpages for inodes and their glocks

2018-12-12T11:33:23+00:00

This patch is based on an idea from Steve Whitehouse. The idea is
to dump the number of pages for inodes in the glock dumps.
The additional locking required me to drop const from quite a few
places.

Signed-off-by: Bob Peterson 
Signed-off-by: Andreas Gruenbacher

gfs2: Fix loop in gfs2_rbm_find

2018-12-12T11:31:40+00:00

Fix the resource group wrap-around logic in gfs2_rbm_find that commit
e579ed4f44 broke.  The bug can lead to unnecessary repeated scanning of the
same bitmaps; there is a risk that future changes will turn this into an
endless loop.

Fixes: e579ed4f44 ("GFS2: Introduce rbm field bii")
Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Bob Peterson

gfs2: Get rid of potential double-freeing in gfs2_create_inode

2018-12-11T20:44:29+00:00

In gfs2_create_inode, after setting and releasing the acl / default_acl, the
acl / default_acl pointers are not set to NULL as they should be.  In that
state, when the function reaches label fail_free_acls, gfs2_create_inode will
try to release the same acls again.

Fix that by setting the pointers to NULL after releasing the acls.  Slightly
simplify the logic.  Also, posix_acl_release checks for NULL already, so
there is no need to duplicate those checks here.

Fixes: e01580bf9e4d ("gfs2: use generic posix ACL infrastructure")
Reported-by: Pan Bian 
Cc: Christoph Hellwig 
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Bob Peterson

gfs2: Remove vestigial bd_ops

2018-12-11T20:43:58+00:00

Field bd_ops was set but never used, so I removed it, and all
code supporting it.

Signed-off-by: Bob Peterson 
Acked-by: Steven Whitehouse 
Signed-off-by: Andreas Gruenbacher

gfs2: read journal in large chunks to locate the head

2018-12-11T16:50:36+00:00

Use bio(s) to read in the journal sequentially in large chunks and
locate the head of the journal.

This version addresses the issues Christoph pointed out w.r.t error handling
and using deprecated API.

Signed-off-by: Abhi Das 
Signed-off-by: Andreas Gruenbacher 
Signed-off-by: Bob Peterson 
Cc: Christoph Hellwig

gfs2: add a helper function to get_log_header that can be used elsewhere

2018-12-11T16:50:36+00:00

Move and re-order the error checks and hash/crc computations into another
function __get_log_header() so it can be used in scenarios where buffer_heads
are not being used for the log header.

Signed-off-by: Abhi Das 
Signed-off-by: Bob Peterson 
Signed-off-by: Andreas Gruenbacher