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| author | Dave Chinner <dchinner@redhat.com> | 2012-04-23 15:58:53 +1000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-05-14 16:20:49 -0500 |
| commit | 795cac72e902496adac399389f9affe5d1ab821a (patch) | |
| tree | 120f20faeb98e4f01a9fa1eb6eab26392b3a5e75 /fs/xfs/xfs_buf.h | |
| parent | aa0e8833b05cbd9d34d6a1ddaf23a74a58d76a03 (diff) | |
| download | linux-stable-795cac72e902496adac399389f9affe5d1ab821a.tar.gz linux-stable-795cac72e902496adac399389f9affe5d1ab821a.tar.bz2 linux-stable-795cac72e902496adac399389f9affe5d1ab821a.zip | |
xfs: kill xfs_buf_btoc
xfs_buf_btoc and friends are simple macros that do basic block
to page index conversion and vice versa. These aren't widely used,
and we use open coded masking and shifting everywhere else. Hence
remove the macros and open code the work they do.
Also, use of PAGE_CACHE_{SIZE|SHIFT|MASK} for these macros is now
incorrect - we are using pages directly and not the page cache, so
use PAGE_{SIZE|MASK|SHIFT} instead.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_buf.h')
| -rw-r--r-- | fs/xfs/xfs_buf.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 9787645fa54c..5b048f7d13ea 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -32,11 +32,6 @@ #define XFS_BUF_DADDR_NULL ((xfs_daddr_t) (-1LL)) -#define xfs_buf_ctob(pp) ((pp) * PAGE_CACHE_SIZE) -#define xfs_buf_btoc(dd) (((dd) + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT) -#define xfs_buf_btoct(dd) ((dd) >> PAGE_CACHE_SHIFT) -#define xfs_buf_poff(aa) ((aa) & ~PAGE_CACHE_MASK) - typedef enum { XBRW_READ = 1, /* transfer into target memory */ XBRW_WRITE = 2, /* transfer from target memory */ |