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Teach zpool scrub to scrub only blocks in error log

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Added a flag '-e' in zpool scrub to scrub only blocks in error log. A
user can pause, resume and cancel the error scrub by passing additional
command line arguments -p -s just like a regular scrub. This involves
adding a new flag, creating new libzfs interfaces, a new ioctl, and the
actual iteration and read-issuing logic. Error scrubbing is executed in
multiple txg to make sure pool performance is not affected.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Co-authored-by: TulsiJain tulsi.jain@delphix.com
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #8995
Closes #12355
This commit is contained in:
George Amanakis
2021-12-17 21:35:28 +01:00
committed by Brian Behlendorf
parent e34e15ed6d
commit 482eeef804
29 changed files with 1602 additions and 71 deletions
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tests/zfs-tests/cmd/libzfs_input_check.c
+15
View File
@@ -27,6 +27,7 @@
#include <sys/vdev_impl.h>
#include <sys/zfs_ioctl.h>
#include <sys/zfs_bootenv.h>
#include <sys/fs/zfs.h>
/*
* Test the nvpair inputs for the non-legacy zfs ioctl commands.
@@ -688,6 +689,17 @@ test_vdev_trim(const char *pool)
nvlist_free(required);
}
/* Test with invalid values */
static void
test_scrub(const char *pool)
{
nvlist_t *required = fnvlist_alloc();
fnvlist_add_uint64(required, "scan_type", POOL_SCAN_FUNCS + 1);
fnvlist_add_uint64(required, "scan_command", POOL_SCRUB_FLAGS_END + 1);
IOC_INPUT_TEST(ZFS_IOC_POOL_SCRUB, pool, required, NULL, EINVAL);
nvlist_free(required);
}
static int
zfs_destroy(const char *dataset)
{
@@ -868,6 +880,8 @@ zfs_ioc_input_tests(const char *pool)
test_set_bootenv(pool);
test_get_bootenv(pool);
test_scrub(pool);
/*
* cleanup
*/
@@ -1022,6 +1036,7 @@ validate_ioc_values(void)
CHECK(ZFS_IOC_BASE + 82 == ZFS_IOC_GET_BOOKMARK_PROPS);
CHECK(ZFS_IOC_BASE + 83 == ZFS_IOC_WAIT);
CHECK(ZFS_IOC_BASE + 84 == ZFS_IOC_WAIT_FS);
CHECK(ZFS_IOC_BASE + 87 == ZFS_IOC_POOL_SCRUB);
CHECK(ZFS_IOC_PLATFORM_BASE + 1 == ZFS_IOC_EVENTS_NEXT);
CHECK(ZFS_IOC_PLATFORM_BASE + 2 == ZFS_IOC_EVENTS_CLEAR);
CHECK(ZFS_IOC_PLATFORM_BASE + 3 == ZFS_IOC_EVENTS_SEEK);