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Add a tunable to disable BRT support.

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Copy the disable parameter that FreeBSD implemented, and extend it to
work on Linux as well, until we're sure this is stable.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #15529
This commit is contained in:
Rich Ercolani
2023-11-16 14:35:22 -05:00
committed by Tony Hutter
parent 0733fe2aa5
commit 87e9e82865
11 changed files with 51 additions and 0 deletions
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module/os/freebsd/zfs/zfs_vfsops.c
+4
View File
@@ -89,6 +89,10 @@ int zfs_debug_level;
SYSCTL_INT(_vfs_zfs, OID_AUTO, debug, CTLFLAG_RWTUN, &zfs_debug_level, 0,
"Debug level");
int zfs_bclone_enabled = 1;
SYSCTL_INT(_vfs_zfs, OID_AUTO, bclone_enabled, CTLFLAG_RWTUN,
&zfs_bclone_enabled, 0, "Enable block cloning");
struct zfs_jailparam {
int mount_snapshot;
};
module/os/freebsd/zfs/zfs_vnops_os.c
+5
View File
@@ -6243,6 +6243,11 @@ zfs_freebsd_copy_file_range(struct vop_copy_file_range_args *ap)
int error;
uint64_t len = *ap->a_lenp;
if (!zfs_bclone_enabled) {
mp = NULL;
goto bad_write_fallback;
}
/*
* TODO: If offset/length is not aligned to recordsize, use
* vn_generic_copy_file_range() on this fragment.