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  1. 16 7月, 2016 2 次提交
  3. 09 7月, 2016 15 次提交
  5. 07 7月, 2016 6 次提交
  7. 16 6月, 2016 1 次提交
  9. 14 6月, 2016 2 次提交
    • J
      f2fs: fix deadlock in add_link failure · c92737ce
      由 Jaegeuk Kim 提交于 
      mkdir                        sync_dirty_inode
 - init_inode_metadata
   - lock_page(node)
   - make_empty_dir
                             - filemap_fdatawrite()
                              - do_writepages
                              - lock_page(data)
                              - write_page(data)
                               - lock_page(node)
   - f2fs_init_acl
    - error
   - truncate_inode_pages
    - lock_page(data)

So, we don't need to truncate data pages in this error case, which will
be done by f2fs_evict_inode.
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      c92737ce
    • J
      f2fs: introduce mode=lfs mount option · 36abef4e
      由 Jaegeuk Kim 提交于 
      This mount option is to enable original log-structured filesystem forcefully.
So, there should be no random writes for main area.

Especially, this supports host-managed SMR device.
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      36abef4e
  11. 09 6月, 2016 4 次提交
  13. 08 6月, 2016 6 次提交
  15. 03 6月, 2016 4 次提交
    • J
      f2fs: handle writepage correctly · b230e6ca
      由 Jaegeuk Kim 提交于 
      Previously, f2fs_write_data_pages() calls __f2fs_writepage() which calls
f2fs_write_data_page().
If f2fs_write_data_page() returns AOP_WRITEPAGE_ACTIVATE, __f2fs_writepage()
calls mapping_set_error(). But, this should not happen at every time, since
sometimes f2fs_write_data_page() tries to skip writing pages without error.
For example, volatile_write() gives EIO all the time, as Shuoran Liu pointed
out.
Reported-by: NShuoran Liu <liushuoran@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      b230e6ca
    • J
      f2fs: return error of f2fs_lookup · eb4246dc
      由 Jaegeuk Kim 提交于 
      Now we can report an error to f2fs_lookup given by f2fs_find_entry.
Suggested-by: NHe YunLei <heyunlei@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      eb4246dc
    • Y
      f2fs: return the errno to the caller to avoid using a wrong page · 0c9df7fb
      由 Yunlong Song 提交于 
      Commit aaf96075 ("f2fs: check node page
contents all the time") pointed out that "sometimes it was reported that
its contents was missing", so it checks the page's mapping and contents.
When "nid != nid_of_node(page)", ERR_PTR(-EIO) will be returned to the
caller. However, commit e1c51b9f ("f2fs:
clean up node page updating flow") moves "nid != nid_of_node(page)" test
to "f2fs_bug_on(sbi, nid != nid_of_node(page))", this will return a
wrong page to the caller when F2FS_CHECK_FS is off when "sometimes it
was reported that its contents was missing" happens.

This patch restores to check node page contents all the time, and
returns the errno to make the caller known something is wrong and avoid
to use the page. This patch also moves f2fs_bug_on to its proper location.
Signed-off-by: NYunlong Song <yunlong.song@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      0c9df7fb
    • J
      f2fs: remove two steps to flush dirty data pages · 46ae957f
      由 Jaegeuk Kim 提交于 
      If there is no cold page, we don't need to do a loop to flush dirty
data pages.

On /dev/pmem0,

1. dd if=/dev/zero of=/mnt/test/testfile bs=1M count=2048 conv=fsync
 Before : 1.1 GB/s
 After  : 1.2 GB/s

2. dd if=/dev/zero of=/mnt/test/testfile bs=1M count=2048
 Before : 2.2 GB/s
 After  : 2.3 GB/s
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
      46ae957f