diff options
| author | Eric Sandeen <sandeen@sandeen.net> | 2007-08-16 16:24:31 +1000 |
|---|---|---|
| committer | Tim Shimmin <tes@chook.melbourne.sgi.com> | 2007-10-15 16:37:46 +1000 |
| commit | 40906630f18fdf5ac27f5928c20f76eeac8fb0f0 (patch) | |
| tree | d567e11ad9234ad37ed59213ad8344891d573c78 /fs | |
| parent | cd8b0a97bd9216578a44a9bf82188cd901295964 (diff) | |
| download | linux-40906630f18fdf5ac27f5928c20f76eeac8fb0f0.tar.gz linux-40906630f18fdf5ac27f5928c20f76eeac8fb0f0.tar.bz2 linux-40906630f18fdf5ac27f5928c20f76eeac8fb0f0.zip | |
[XFS] Remove m_nreadaheads
m_nreadaheads in the mount struct is never used; remove it and the various
macros assigned to it. Also remove a couple other unused macros in the
same areas.
Removes one user of xfs_physmem.
SGI-PV: 968563
SGI-Modid: xfs-linux-melb:xfs-kern:29322a
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_lrw.h | 5 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.c | 10 | ||||
| -rw-r--r-- | fs/xfs/xfs_mount.h | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_rw.h | 26 |
4 files changed, 0 insertions, 42 deletions
diff --git a/fs/xfs/linux-2.6/xfs_lrw.h b/fs/xfs/linux-2.6/xfs_lrw.h index 7c60a1eed88b..1ad29bae5415 100644 --- a/fs/xfs/linux-2.6/xfs_lrw.h +++ b/fs/xfs/linux-2.6/xfs_lrw.h @@ -71,11 +71,6 @@ extern void xfs_inval_cached_trace(struct xfs_iocore *, #define xfs_inval_cached_trace(io, offset, len, first, last) #endif -/* - * Maximum count of bmaps used by read and write paths. - */ -#define XFS_MAX_RW_NBMAPS 4 - extern int xfs_bmap(struct bhv_desc *, xfs_off_t, ssize_t, int, struct xfs_iomap *, int *); extern int xfsbdstrat(struct xfs_mount *, struct xfs_buf *); diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index a66b39805176..4458e706b1c6 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -871,16 +871,6 @@ xfs_mountfs( writeio_log = mp->m_writeio_log; } - /* - * Set the number of readahead buffers to use based on - * physical memory size. - */ - if (xfs_physmem <= 4096) /* <= 16MB */ - mp->m_nreadaheads = XFS_RW_NREADAHEAD_16MB; - else if (xfs_physmem <= 8192) /* <= 32MB */ - mp->m_nreadaheads = XFS_RW_NREADAHEAD_32MB; - else - mp->m_nreadaheads = XFS_RW_NREADAHEAD_K32; if (sbp->sb_blocklog > readio_log) { mp->m_readio_log = sbp->sb_blocklog; } else { diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 76ad74758696..1a5d1d360d80 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -362,7 +362,6 @@ typedef struct xfs_mount { __uint8_t m_blkbb_log; /* blocklog - BBSHIFT */ __uint8_t m_agno_log; /* log #ag's */ __uint8_t m_agino_log; /* #bits for agino in inum */ - __uint8_t m_nreadaheads; /* #readahead buffers */ __uint16_t m_inode_cluster_size;/* min inode buf size */ uint m_blockmask; /* sb_blocksize-1 */ uint m_blockwsize; /* sb_blocksize in words */ diff --git a/fs/xfs/xfs_rw.h b/fs/xfs/xfs_rw.h index fcf28dbded7c..943bddde83c6 100644 --- a/fs/xfs/xfs_rw.h +++ b/fs/xfs/xfs_rw.h @@ -23,32 +23,6 @@ struct xfs_inode; struct xfs_mount; /* - * Maximum count of bmaps used by read and write paths. - */ -#define XFS_MAX_RW_NBMAPS 4 - -/* - * Counts of readahead buffers to use based on physical memory size. - * None of these should be more than XFS_MAX_RW_NBMAPS. - */ -#define XFS_RW_NREADAHEAD_16MB 2 -#define XFS_RW_NREADAHEAD_32MB 3 -#define XFS_RW_NREADAHEAD_K32 4 -#define XFS_RW_NREADAHEAD_K64 4 - -/* - * Maximum size of a buffer that we\'ll map. Making this - * too big will degrade performance due to the number of - * pages which need to be gathered. Making it too small - * will prevent us from doing large I/O\'s to hardware that - * needs it. - * - * This is currently set to 512 KB. - */ -#define XFS_MAX_BMAP_LEN_BB 1024 -#define XFS_MAX_BMAP_LEN_BYTES 524288 - -/* * Convert the given file system block to a disk block. * We have to treat it differently based on whether the * file is a real time file or not, because the bmap code |