The patch titled
autofs3: Make sure all dentries refs are released before calling kill_anon_super()
has been added to the -mm tree. Its filename is
autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: autofs3: Make sure all dentries refs are released before calling kill_anon_super()
From: David Howells <dhowells@xxxxxxxxxx>
Make sure all dentries refs are released before calling kill_anon_super()
so that the assumption that generic_shutdown_super() can completely destroy
the dentry tree for there will be no external references holds true.
What was being done in the put_super() superblock op, is now done in the
kill_sb() filesystem op instead, prior to calling kill_anon_super().
The call to shrink_dcache_sb() is removed as it is redundant since
shrink_dcache_for_umount() will now be called after the cleanup routine.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Acked-by: Ian Kent <raven@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/autofs/autofs_i.h | 1 +
fs/autofs/dirhash.c | 1 -
fs/autofs/init.c | 2 +-
fs/autofs/inode.c | 4 ++--
4 files changed, 4 insertions(+), 4 deletions(-)
diff -puN fs/autofs/autofs_i.h~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super fs/autofs/autofs_i.h
--- a/fs/autofs/autofs_i.h~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super
+++ a/fs/autofs/autofs_i.h
@@ -149,6 +149,7 @@ extern const struct file_operations auto
/* Initializing function */
int autofs_fill_super(struct super_block *, void *, int);
+void autofs_kill_sb(struct super_block *sb);
/* Queue management functions */
diff -puN fs/autofs/dirhash.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super fs/autofs/dirhash.c
--- a/fs/autofs/dirhash.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super
+++ a/fs/autofs/dirhash.c
@@ -246,5 +246,4 @@ void autofs_hash_nuke(struct autofs_sb_i
kfree(ent);
}
}
- shrink_dcache_sb(sbi->sb);
}
diff -puN fs/autofs/init.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super fs/autofs/init.c
--- a/fs/autofs/init.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super
+++ a/fs/autofs/init.c
@@ -24,7 +24,7 @@ static struct file_system_type autofs_fs
.owner = THIS_MODULE,
.name = "autofs",
.get_sb = autofs_get_sb,
- .kill_sb = kill_anon_super,
+ .kill_sb = autofs_kill_sb,
};
static int __init init_autofs_fs(void)
diff -puN fs/autofs/inode.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super fs/autofs/inode.c
--- a/fs/autofs/inode.c~autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super
+++ a/fs/autofs/inode.c
@@ -20,7 +20,7 @@
#include "autofs_i.h"
#include <linux/module.h>
-static void autofs_put_super(struct super_block *sb)
+void autofs_kill_sb(struct super_block *sb)
{
struct autofs_sb_info *sbi = autofs_sbi(sb);
unsigned int n;
@@ -37,13 +37,13 @@ static void autofs_put_super(struct supe
kfree(sb->s_fs_info);
DPRINTK(("autofs: shutting down\n"));
+ kill_anon_super(sb);
}
static void autofs_read_inode(struct inode *inode);
static struct super_operations autofs_sops = {
.read_inode = autofs_read_inode,
- .put_super = autofs_put_super,
.statfs = simple_statfs,
};
_
Patches currently in -mm which might be from dhowells@xxxxxxxxxx are
origin.patch
separate-bdi-congestion-functions-from-queue-congestion-functions.patch
separate-bdi-congestion-functions-from-queue-congestion-functions-inline-stuff.patch
fix-typo-in-memory-barrier-docs.patch
autofs3-make-sure-all-dentries-refs-are-released-before-calling-kill_anon_super.patch
nfs-represent-64-bit-fileids-as-64-bit-inode-numbers-on-32-bit-systems.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel-fix.patch
log2-implement-a-general-integer-log2-facility-in-the-kernel-vs-git-cryptodev.patch
log2-alter-roundup_pow_of_two-so-that-it-can-use-a-ilog2-on-a-constant.patch
log2-alter-get_order-so-that-it-can-make-use-of-ilog2-on-a-constant.patch
log2-provide-ilog2-fallbacks-for-powerpc.patch
fs-cache-provide-a-filesystem-specific-syncable-page-bit.patch
fs-cache-generic-filesystem-caching-facility.patch
fs-cache-release-page-private-in-failed-readahead.patch
fs-cache-release-page-private-after-failed-readahead-12.patch
fs-cache-make-kafs-use-fs-cache.patch
fs-cache-make-kafs-use-fs-cache-fix.patch
fs-cache-make-kafs-use-fs-cache-12.patch
fs-cache-make-kafs-use-fs-cache-12-fix.patch
fs-cache-make-kafs-use-fs-cache-kconfig-fix.patch
fs-cache-make-kafs-use-fs-cache-vs-streamline-generic_file_-interfaces-and-filemap.patch
nfs-use-local-caching.patch
nfs-use-local-caching-12.patch
nfs-use-local-caching-12-fix.patch
nfs-use-local-caching-kconfig-fix.patch
nfs-use-local-caching-configh.patch
add-missing-page_copy-export-for-ppc-and-powerpc.patch
fs-cache-cachefiles-ia64-missing-copy_page-export.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-fscache-fix-gfp_t-sparse-annotations.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-cachefiles-printk-format-warning.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-warning-fixes.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-cachefiles-cachefiles_write_page-shouldnt-indicate-error-twice.patch
fscache-kconfig-tidying.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-log2-fix.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-cachefiles-handle-enospc-on-create-mkdir-better.patch
fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-inode-count-maintenance.patch
afs-amend-the-afs-configuration-options.patch
reiser4-get_sb_dev-fix.patch
mutex-subsystem-synchro-test-module.patch
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