c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 10:37:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

Linux 5.11 compat: bio_start_io_acct() / bio_end_io_acct()

Browse Source 
The generic IO accounting functions have been removed in favor of the
bio_start_io_acct() and bio_end_io_acct() functions which provide a
better interface.  These new functions were introduced in the 5.8
kernels but it wasn't until the 5.11 kernel that the previous generic
IO accounting interfaces were removed.

This commit updates the blk_generic_*_io_acct() wrappers to provide
and interface similar to the updated kernel interface.  It's slightly
different because for older kernels we need to pass the request queue
as well as the bio.

Reviewed-by: Rafael Kitover <rkitover@gmail.com>
Reviewed-by: Coleman Kane <ckane@colemankane.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11387
Closes #11390
This commit is contained in:
Brian Behlendorf
2020-12-22 12:17:13 -08:00
parent b7281c88bc
commit a970f0594e
3 changed files with 92 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/zvol_os.c
+33 -16
View File
@@ -106,10 +106,14 @@ zvol_write(void *arg)
return;
}
struct request_queue *q = zv->zv_zso->zvo_queue;
struct gendisk *disk = zv->zv_zso->zvo_disk;
ssize_t start_resid = uio.uio_resid;
unsigned long start_jif = jiffies;
blk_generic_start_io_acct(zv->zv_zso->zvo_queue, WRITE,
bio_sectors(bio), &zv->zv_zso->zvo_disk->part0);
unsigned long start_time;
boolean_t acct = blk_queue_io_stat(q);
if (acct)
start_time = blk_generic_start_io_acct(q, disk, WRITE, bio);
boolean_t sync =
bio_is_fua(bio) || zv->zv_objset->os_sync == ZFS_SYNC_ALWAYS;
@@ -153,8 +157,10 @@ zvol_write(void *arg)
zil_commit(zv->zv_zilog, ZVOL_OBJ);
rw_exit(&zv->zv_suspend_lock);
blk_generic_end_io_acct(zv->zv_zso->zvo_queue,
WRITE, &zv->zv_zso->zvo_disk->part0, start_jif);
if (acct)
blk_generic_end_io_acct(q, disk, WRITE, bio, start_time);
BIO_END_IO(bio, -error);
kmem_free(zvr, sizeof (zv_request_t));
}
@@ -171,15 +177,18 @@ zvol_discard(void *arg)
boolean_t sync;
int error = 0;
dmu_tx_t *tx;
unsigned long start_jif;
ASSERT3P(zv, !=, NULL);
ASSERT3U(zv->zv_open_count, >, 0);
ASSERT3P(zv->zv_zilog, !=, NULL);
start_jif = jiffies;
blk_generic_start_io_acct(zv->zv_zso->zvo_queue, WRITE,
bio_sectors(bio), &zv->zv_zso->zvo_disk->part0);
struct request_queue *q = zv->zv_zso->zvo_queue;
struct gendisk *disk = zv->zv_zso->zvo_disk;
unsigned long start_time;
boolean_t acct = blk_queue_io_stat(q);
if (acct)
start_time = blk_generic_start_io_acct(q, disk, WRITE, bio);
sync = bio_is_fua(bio) || zv->zv_objset->os_sync == ZFS_SYNC_ALWAYS;
@@ -224,8 +233,10 @@ zvol_discard(void *arg)
unlock:
rw_exit(&zv->zv_suspend_lock);
blk_generic_end_io_acct(zv->zv_zso->zvo_queue, WRITE,
&zv->zv_zso->zvo_disk->part0, start_jif);
if (acct)
blk_generic_end_io_acct(q, disk, WRITE, bio, start_time);
BIO_END_IO(bio, -error);
kmem_free(zvr, sizeof (zv_request_t));
}
@@ -244,10 +255,14 @@ zvol_read(void *arg)
ASSERT3P(zv, !=, NULL);
ASSERT3U(zv->zv_open_count, >, 0);
struct request_queue *q = zv->zv_zso->zvo_queue;
struct gendisk *disk = zv->zv_zso->zvo_disk;
ssize_t start_resid = uio.uio_resid;
unsigned long start_jif = jiffies;
blk_generic_start_io_acct(zv->zv_zso->zvo_queue, READ, bio_sectors(bio),
&zv->zv_zso->zvo_disk->part0);
unsigned long start_time;
boolean_t acct = blk_queue_io_stat(q);
if (acct)
start_time = blk_generic_start_io_acct(q, disk, READ, bio);
zfs_locked_range_t *lr = zfs_rangelock_enter(&zv->zv_rangelock,
uio.uio_loffset, uio.uio_resid, RL_READER);
@@ -275,8 +290,10 @@ zvol_read(void *arg)
task_io_account_read(nread);
rw_exit(&zv->zv_suspend_lock);
blk_generic_end_io_acct(zv->zv_zso->zvo_queue, READ,
&zv->zv_zso->zvo_disk->part0, start_jif);
if (acct)
blk_generic_end_io_acct(q, disk, READ, bio, start_time);
BIO_END_IO(bio, -error);
kmem_free(zvr, sizeof (zv_request_t));
}