linux-stable.git/fs/f2fs/node.c, branch v4.17

page cache: use xa_lock

2018-04-11T17:28:39+00:00

Remove the address_space ->tree_lock and use the xa_lock newly added to
the radix_tree_root.  Rename the address_space ->page_tree to ->i_pages,
since we don't really care that it's a tree.

[willy@infradead.org: fix nds32, fs/dax.c]
  Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org
Signed-off-by: Matthew Wilcox 
Acked-by: Jeff Layton 
Cc: Darrick J. Wong 
Cc: Dave Chinner 
Cc: Ryusuke Konishi 
Cc: Will Deacon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

f2fs: don't track new nat entry in nat set

2018-03-28T03:10:29+00:00

Nat entry set is used only in checkpoint(), and during checkpoint() we
won't flush new nat entry with unallocated address, so we don't need to
add new nat entry into nat set, then nat_entry_set::entry_cnt can
indicate actual entry count we need to flush in checkpoint().

Signed-off-by: Yunlei He 
Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: clean up with F2FS_BLK_ALIGN

2018-03-28T03:09:32+00:00

Clean up F2FS_BYTES_TO_BLK(x + F2FS_BLKSIZE - 1) with F2FS_BLK_ALIGN(x).

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: align memory boundary for bitops

2018-03-17T04:57:39+00:00

For example, in arm64, free_nid_bitmap should be aligned to word size in order
to use bit operations.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: remove unneeded set_cold_node()

2018-03-17T04:57:33+00:00

When setting COLD_BIT_SHIFT flag in node block, we only need to call
set_cold_node() in new_node_page() and recover_inode_page() during
node page initialization. So remove unneeded set_cold_node() in other
places.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: use GFP_F2FS_ZERO for cleanup

2018-01-25T18:39:49+00:00

Clean up codes with GFP_F2FS_ZERO, no logic changes.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: drop page cache after fs shutdown

2018-01-22T22:56:56+00:00

Don't remain dirtied page cache in f2fs after shutdown, it can mitigate
memory pressure of whole system, in order to keep other modules working
properly.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: implement cgroup writeback support

2018-01-16T23:40:01+00:00

Cgroup writeback requires explicit support from the filesystem.
f2fs's data and node writeback IOs go through __write_data_page,
which sets fio for submiting IOs. So, we add io_wbc for fio,
associate bios with blkcg by invoking wbc_init_bio() and
account IOs issuing by wbc_account_io().
In addtion, f2fs_fill_super() is updated to set SB_I_CGROUPWB.

Meta writeback IOs is left alone by this patch and will always be
attributed to the root cgroup.

The results show that f2fs can throttle writeback nicely for
data writing and file creating.

Reviewed-by: Chao Yu 
Signed-off-by: Yufen Yu 
Signed-off-by: Jaegeuk Kim

f2fs: update inode info to inode page for new file

2018-01-16T23:39:56+00:00

After checkpoint,
 1. creat a new file A ,(with dirty inode && dirty inode page && xattr info)
 2. backgroud wb write back file A inode page (without update from inode cache)
 3. fsync file A, write back inode page of file A with inode cache info
 4. sudden power off before new checkpoint

In this case, recovery process will try to recover a zero inode
page. Inline xattr flag of file A will be miss and xattr info
will be taken as blkaddr index.

Signed-off-by: Yunlei He 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: no need return value in restore summary process

2018-01-03T03:27:30+00:00

No need return value in restore summary process

Signed-off-by: Yunlei He 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim