diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2024-02-22 23:30:44 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-02-22 23:30:44 +0300 |
| commit | ae05eb117108428895e75a30e7fe3dbf1016cf93 (patch) | |
| tree | 51b84e3d6226dc6389e1a721625d47effba89031 /fs/xfs/xfs_iwalk.c | |
| parent | 4b2f459d86252619448455013f581836c8b1b7da (diff) | |
| download | linux-ae05eb117108428895e75a30e7fe3dbf1016cf93.tar.xz | |
xfs: speed up xfs_iwalk_adjust_start a little bit
Replace the open-coded loop that recomputes freecount with a single call
to a bit weight function.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_iwalk.c')
| -rw-r--r-- | fs/xfs/xfs_iwalk.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c index 6d2eb6364867..c1e9c7bcb6a9 100644 --- a/fs/xfs/xfs_iwalk.c +++ b/fs/xfs/xfs_iwalk.c @@ -22,6 +22,7 @@ #include "xfs_trans.h" #include "xfs_pwork.h" #include "xfs_ag.h" +#include "xfs_bit.h" /* * Walking Inodes in the Filesystem @@ -131,21 +132,11 @@ xfs_iwalk_adjust_start( struct xfs_inobt_rec_incore *irec) /* btree record */ { int idx; /* index into inode chunk */ - int i; idx = agino - irec->ir_startino; - /* - * We got a right chunk with some left inodes allocated at it. Grab - * the chunk record. Mark all the uninteresting inodes free because - * they're before our start point. - */ - for (i = 0; i < idx; i++) { - if (XFS_INOBT_MASK(i) & ~irec->ir_free) - irec->ir_freecount++; - } - irec->ir_free |= xfs_inobt_maskn(0, idx); + irec->ir_freecount = hweight64(irec->ir_free); } /* Allocate memory for a walk. */ |