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authorVishal Verma <vishal.l.verma@intel.com>2016-04-21 16:45:56 -0400
committerVishal Verma <vishal.l.verma@intel.com>2016-05-18 12:16:58 -0600
commit40543f62cbdce42633e3fe10923099feee272e1f (patch)
treea42d0be3bb305e19628b3d118ad4be9a80fbc4a8 /fs/dax.c
parent4b0228fa1d753f77fe0e6cf4c41398ec77dfbd2a (diff)
downloadlinux-40543f62cbdce42633e3fe10923099feee272e1f.tar.bz2
dax: fix a comment in dax_zero_page_range and dax_truncate_page
The distinction between PAGE_SIZE and PAGE_CACHE_SIZE was removed in 09cbfea mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros The comments for the above functions described a distinction between those, that is now redundant, so remove those paragraphs Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/fs/dax.c b/fs/dax.c
index 0b9a16934017..ea936b3d93dc 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -995,12 +995,6 @@ EXPORT_SYMBOL_GPL(__dax_zero_page_range);
* page in a DAX file. This is intended for hole-punch operations. If
* you are truncating a file, the helper function dax_truncate_page() may be
* more convenient.
- *
- * We work in terms of PAGE_SIZE here for commonality with
- * block_truncate_page(), but we could go down to PAGE_SIZE if the filesystem
- * took care of disposing of the unnecessary blocks. Even if the filesystem
- * block size is smaller than PAGE_SIZE, we have to zero the rest of the page
- * since the file might be mmapped.
*/
int dax_zero_page_range(struct inode *inode, loff_t from, unsigned length,
get_block_t get_block)
@@ -1035,12 +1029,6 @@ EXPORT_SYMBOL_GPL(dax_zero_page_range);
*
* Similar to block_truncate_page(), this function can be called by a
* filesystem when it is truncating a DAX file to handle the partial page.
- *
- * We work in terms of PAGE_SIZE here for commonality with
- * block_truncate_page(), but we could go down to PAGE_SIZE if the filesystem
- * took care of disposing of the unnecessary blocks. Even if the filesystem
- * block size is smaller than PAGE_SIZE, we have to zero the rest of the page
- * since the file might be mmapped.
*/
int dax_truncate_page(struct inode *inode, loff_t from, get_block_t get_block)
{