lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[XFS] Add a greedy allocation interface, allocating within a min/max size

Browse Source 
range.

SGI-PV: 955302
SGI-Modid: xfs-linux-melb:xfs-kern:26803a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
Nathan Scott
2006-09-28 11:03:27 +10:00
committed by Tim Shimmin
parent 572d95f49f
commit 77e4635ae1
5 changed files with 34 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
fs/xfs/xfs_itable.c
View File

@@ -326,7 +326,6 @@ xfs_bulkstat(
int i; /* loop index */
int icount; /* count of inodes good in irbuf */
int irbsize; /* size of irec buffer in bytes */
unsigned int kmflags; /* flags for allocating irec buffer */
xfs_ino_t ino; /* inode number (filesystem) */
xfs_inobt_rec_incore_t *irbp; /* current irec buffer pointer */
xfs_inobt_rec_incore_t *irbuf; /* start of irec buffer */
@@ -371,19 +370,8 @@ xfs_bulkstat(
(XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog);
nimask = ~(nicluster - 1);
nbcluster = nicluster >> mp->m_sb.sb_inopblog;
/*
* Allocate a local buffer for inode cluster btree records.
* This caps our maximum readahead window (so don't be stingy)
* but we must handle the case where we can't get a contiguous
* multi-page buffer, so we drop back toward pagesize; the end
* case we ensure succeeds, via appropriate allocation flags.
*/
irbsize = NBPP * 4;
kmflags = KM_SLEEP | KM_MAYFAIL;
while (!(irbuf = kmem_alloc(irbsize, kmflags))) {
if ((irbsize >>= 1) <= NBPP)
kmflags = KM_SLEEP;
}
irbuf = kmem_zalloc_greedy(&irbsize, NBPC, NBPC * 4,
KM_SLEEP | KM_MAYFAIL | KM_LARGE);
nirbuf = irbsize / sizeof(*irbuf);
/*