diff options
| author | Ross Zwisler <ross.zwisler@linux.intel.com> | 2016-09-22 11:49:38 -0400 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2017-02-10 11:03:23 +0100 |
| commit | 7a97321f5c3666df35674889e45f6a0370bc99fc (patch) | |
| tree | d7b4084b050b49c45e47cd64f4271394e888794d /fs/ext4 | |
| parent | 1326ba8707a5f8edb714f621f2d75d1e74b86ed6 (diff) | |
ext4: allow DAX writeback for hole punch
commit cca32b7eeb4ea24fa6596650e06279ad9130af98 upstream.
Currently when doing a DAX hole punch with ext4 we fail to do a writeback.
This is because the logic around filemap_write_and_wait_range() in
ext4_punch_hole() only looks for dirty page cache pages in the radix tree,
not for dirty DAX exceptional entries.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a187055c1b04..31179ba2072c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3610,7 +3610,7 @@ int ext4_can_truncate(struct inode *inode) } /* - * ext4_punch_hole: punches a hole in a file by releaseing the blocks + * ext4_punch_hole: punches a hole in a file by releasing the blocks * associated with the given offset and length * * @inode: File inode @@ -3646,7 +3646,7 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length) * Write out all dirty pages to avoid race conditions * Then release them. */ - if (mapping->nrpages && mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { + if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) { ret = filemap_write_and_wait_range(mapping, offset, offset + length - 1); if (ret) |