diff options
| author | Pavel Snajdr <[email protected]> | 2019-11-11 18:34:21 +0100 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2019-11-11 09:34:21 -0800 |
| commit | 5a6ac4cffcd0255ca6f730bcf356e12891fd18af (patch) | |
| tree | 7498ba3b34fdca3c211b4b8bb79557eaaf413a40 /config | |
| parent | f15d6a54575567c6d69b6f1ffc000d2df5a8f206 (diff) | |
Remove zpl_revalidate
This patch removes the need for zpl_revalidate altogether.
There were 3 main reasons why we used d_revalidate:
1. periodic automounted snapshots umount deferral
2. negative dentries created before snapshot rollback
3. stale inodes referenced by dentry cache after snapshot rollback
Periodic snapshots deferral solution introduces zfs_exit_fs function,
which is called as a part of ZFS_EXIT(zfsvfs_t) macro.
Negative dentries and stale inodes are solved by flushing the dcache
for the particular dataset on zfs_resume_fs call.
This patch also removes now unused HAVE_S_D_OP configure test.
Reviewed-by: Aleksa Sarai <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Pavel Snajdr <[email protected]>
Closes #8774
Closes #9549
Diffstat (limited to 'config')
| -rw-r--r-- | config/kernel-dentry-operations.m4 | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/config/kernel-dentry-operations.m4 b/config/kernel-dentry-operations.m4 index 2dfd2ac55..de7482801 100644 --- a/config/kernel-dentry-operations.m4 +++ b/config/kernel-dentry-operations.m4 @@ -150,29 +150,6 @@ AC_DEFUN([ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS], [ ]) ]) -dnl # -dnl # 2.6.38 API change -dnl # Added sb->s_d_op default dentry_operations member -dnl # -AC_DEFUN([ZFS_AC_KERNEL_SRC_S_D_OP], [ - ZFS_LINUX_TEST_SRC([super_block_s_d_op], [ - #include <linux/fs.h> - ],[ - struct super_block sb __attribute__ ((unused)); - sb.s_d_op = NULL; - ]) -]) - -AC_DEFUN([ZFS_AC_KERNEL_S_D_OP], [ - AC_MSG_CHECKING([whether super_block has s_d_op]) - ZFS_LINUX_TEST_RESULT([super_block_s_d_op], [ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_S_D_OP, 1, [struct super_block has s_d_op]) - ], [ - AC_MSG_RESULT(no) - ]) -]) - AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY], [ ZFS_AC_KERNEL_SRC_D_MAKE_ROOT ZFS_AC_KERNEL_SRC_D_OBTAIN_ALIAS @@ -180,7 +157,6 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_DENTRY], [ ZFS_AC_KERNEL_SRC_D_SET_D_OP ZFS_AC_KERNEL_SRC_D_REVALIDATE_NAMEIDATA ZFS_AC_KERNEL_SRC_CONST_DENTRY_OPERATIONS - ZFS_AC_KERNEL_SRC_S_D_OP ]) AC_DEFUN([ZFS_AC_KERNEL_DENTRY], [ @@ -190,5 +166,4 @@ AC_DEFUN([ZFS_AC_KERNEL_DENTRY], [ ZFS_AC_KERNEL_D_SET_D_OP ZFS_AC_KERNEL_D_REVALIDATE_NAMEIDATA ZFS_AC_KERNEL_CONST_DENTRY_OPERATIONS - ZFS_AC_KERNEL_S_D_OP ]) |