c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-24 19:28:53 +03:00
Code Issues Packages Projects Releases Wiki Activity

Illumos #3741

Browse Source 
3741 zfs needs better comments
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Approved by: Christopher Siden <christopher.siden@delphix.com>

References:
  https://www.illumos.org/issues/3741
  illumos/illumos-gate@3e30c24aee

Ported-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #1775
This commit is contained in:
Will Andrews
2013-06-11 09:12:34 -08:00
committed by Brian Behlendorf
parent b1118acbb1
commit e49f1e20a0
12 changed files with 154 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/dmu_zfetch.c
+6 -6
View File
@@ -48,11 +48,11 @@ unsigned int zfetch_block_cap = 256;
unsigned long zfetch_array_rd_sz = 1024 * 1024;
/* forward decls for static routines */
static int dmu_zfetch_colinear(zfetch_t *, zstream_t *);
static boolean_t dmu_zfetch_colinear(zfetch_t *, zstream_t *);
static void dmu_zfetch_dofetch(zfetch_t *, zstream_t *);
static uint64_t dmu_zfetch_fetch(dnode_t *, uint64_t, uint64_t);
static uint64_t dmu_zfetch_fetchsz(dnode_t *, uint64_t, uint64_t);
static int dmu_zfetch_find(zfetch_t *, zstream_t *, int);
static boolean_t dmu_zfetch_find(zfetch_t *, zstream_t *, int);
static int dmu_zfetch_stream_insert(zfetch_t *, zstream_t *);
static zstream_t *dmu_zfetch_stream_reclaim(zfetch_t *);
static void dmu_zfetch_stream_remove(zfetch_t *, zstream_t *);
@@ -104,9 +104,9 @@ kstat_t *zfetch_ksp;
* last stream, then we are probably in a strided access pattern. So
* combine the two sequential streams into a single strided stream.
*
* If no co-linear streams are found, return NULL.
* Returns whether co-linear streams were found.
*/
static int
static boolean_t
dmu_zfetch_colinear(zfetch_t *zf, zstream_t *zh)
{
zstream_t *z_walk;
@@ -326,7 +326,7 @@ dmu_zfetch_fetchsz(dnode_t *dn, uint64_t blkid, uint64_t nblks)
* for this block read. If so, it starts a prefetch for the stream it
* located and returns true, otherwise it returns false
*/
static int
static boolean_t
dmu_zfetch_find(zfetch_t *zf, zstream_t *zh, int prefetched)
{
zstream_t *zs;
@@ -639,7 +639,7 @@ dmu_zfetch(zfetch_t *zf, uint64_t offset, uint64_t size, int prefetched)
{
zstream_t zst;
zstream_t *newstream;
int fetched;
boolean_t fetched;
int inserted;
unsigned int blkshft;
uint64_t blksz;