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Macroify teardown lock handling

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This will allow platforms to implement it as they see fit, in particular
in a different manner than rrm locks.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matt Macy <mmacy@FreeBSD.org>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Closes #11153
This commit is contained in:
Mateusz Guzik
2020-11-04 17:23:48 -05:00
committed by Tony Hutter
parent cd80d6d355
commit 5d946dfa1c
7 changed files with 106 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/os/linux/zfs/sys/zfs_vfsops_os.h
+33
View File
@@ -138,6 +138,39 @@ struct zfsvfs {
taskqid_t z_drain_task; /* task id for the unlink drain task */
};
#define ZFS_TEARDOWN_INIT(zfsvfs) \
rrm_init(&(zfsvfs)->z_teardown_lock, B_FALSE)
#define ZFS_TEARDOWN_DESTROY(zfsvfs) \
rrm_destroy(&(zfsvfs)->z_teardown_lock)
#define ZFS_TEARDOWN_TRY_ENTER_READ(zfsvfs) \
rw_tryenter(&(zfsvfs)->z_teardown_lock, RW_READER)
#define ZFS_TEARDOWN_ENTER_READ(zfsvfs, tag) \
rrm_enter_read(&(zfsvfs)->z_teardown_lock, tag);
#define ZFS_TEARDOWN_EXIT_READ(zfsvfs, tag) \
rrm_exit(&(zfsvfs)->z_teardown_lock, tag)
#define ZFS_TEARDOWN_ENTER_WRITE(zfsvfs, tag) \
rrm_enter(&(zfsvfs)->z_teardown_lock, RW_WRITER, tag)
#define ZFS_TEARDOWN_EXIT_WRITE(zfsvfs) \
rrm_exit(&(zfsvfs)->z_teardown_lock, tag)
#define ZFS_TEARDOWN_EXIT(zfsvfs, tag) \
rrm_exit(&(zfsvfs)->z_teardown_lock, tag)
#define ZFS_TEARDOWN_READ_HELD(zfsvfs) \
RRM_READ_HELD(&(zfsvfs)->z_teardown_lock)
#define ZFS_TEARDOWN_WRITE_HELD(zfsvfs) \
RRM_WRITE_HELD(&(zfsvfs)->z_teardown_lock)
#define ZFS_TEARDOWN_HELD(zfsvfs) \
RRM_LOCK_HELD(&(zfsvfs)->z_teardown_lock)
#define ZSB_XATTR 0x0001 /* Enable user xattrs */
/*
include/os/linux/zfs/sys/zfs_znode_impl.h
+3 -3
View File
@@ -79,9 +79,9 @@ extern "C" {
/* Called on entry to each ZFS inode and vfs operation. */
#define ZFS_ENTER_ERROR(zfsvfs, error) \
do { \
rrm_enter_read(&(zfsvfs)->z_teardown_lock, FTAG); \
ZFS_TEARDOWN_ENTER_READ(zfsvfs, FTAG); \
if (unlikely((zfsvfs)->z_unmounted)) { \
ZFS_EXIT(zfsvfs); \
ZFS_TEARDOWN_EXIT_READ(zfsvfs, FTAG); \
return (error); \
} \
} while (0)
@@ -92,7 +92,7 @@ do { \
#define ZFS_EXIT(zfsvfs) \
do { \
zfs_exit_fs(zfsvfs); \
rrm_exit(&(zfsvfs)->z_teardown_lock, FTAG); \
ZFS_TEARDOWN_EXIT_READ(zfsvfs, FTAG); \
} while (0)
#define ZPL_EXIT(zfsvfs) \