c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-06-01 03:34:10 +03:00
Code Issues Packages Projects Releases Wiki Activity

Add zfs_iput_async() interface

Browse Source 
Handle all iputs in zfs_purgedir() and zfs_inode_destroy()
asynchronously to prevent deadlocks.  When the iputs are allowed
to run synchronously in the destroy call path deadlocks between
xattr directory inodes and their parent file inodes are possible.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Closes #457
This commit is contained in:
Brian Behlendorf
2014-08-04 13:30:20 -07:00
parent 4dd18932ba
commit 0a50679ce9
4 changed files with 17 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/zfs_dir.c
+4 -3
View File
@@ -46,6 +46,7 @@
#include <sys/policy.h>
#include <sys/zfs_dir.h>
#include <sys/zfs_acl.h>
#include <sys/zfs_vnops.h>
#include <sys/fs/zfs.h>
#include "fs/fs_subr.h"
#include <sys/zap.h>
@@ -528,7 +529,7 @@ zfs_purgedir(znode_t *dzp)
error = dmu_tx_assign(tx, TXG_WAIT);
if (error) {
dmu_tx_abort(tx);
iput(ZTOI(xzp));
zfs_iput_async(ZTOI(xzp));
skipped += 1;
continue;
}
@@ -541,7 +542,7 @@ zfs_purgedir(znode_t *dzp)
skipped += 1;
dmu_tx_commit(tx);
iput(ZTOI(xzp));
zfs_iput_async(ZTOI(xzp));
}
zap_cursor_fini(&zc);
if (error != ENOENT)
@@ -729,7 +730,7 @@ zfs_rmnode(znode_t *zp)
dmu_tx_commit(tx);
out:
if (xzp)
iput(ZTOI(xzp));
zfs_iput_async(ZTOI(xzp));
}
static uint64_t