The patch titled
Subject: fs/affs: make export work with cold dcache
has been added to the -mm tree. Its filename is
fs-affs-make-export-work-with-cold-dcache.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fs-affs-make-export-work-with-cold-dcache.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fs-affs-make-export-work-with-cold-dcache.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Fabian Frederick <fabf@xxxxxxxxx>
Subject: fs/affs: make export work with cold dcache
This adds get_parent function so that nfs client can still work after
cache drop (Tested on NFS v4 with echo 3 > /proc/sys/vm/drop_caches)
Link: http://lkml.kernel.org/r/20170109191208.6085-8-fabf@xxxxxxxxx
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
Suggested-by: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/affs/namei.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff -puN fs/affs/namei.c~fs-affs-make-export-work-with-cold-dcache fs/affs/namei.c
--- a/fs/affs/namei.c~fs-affs-make-export-work-with-cold-dcache
+++ a/fs/affs/namei.c
@@ -447,6 +447,24 @@ done:
return retval;
}
+static struct dentry *affs_get_parent(struct dentry *child)
+{
+ struct inode *parent;
+ struct buffer_head *bh;
+
+ bh = affs_bread(child->d_sb, d_inode(child)->i_ino);
+ if (IS_ERR(bh))
+ return ERR_CAST(bh);
+
+ parent = affs_iget(child->d_sb,
+ be32_to_cpu(AFFS_TAIL(child->d_sb, bh)->parent));
+ brelse(bh);
+ if (IS_ERR(parent))
+ return ERR_CAST(parent);
+
+ return d_obtain_alias(parent);
+}
+
static struct inode *affs_nfs_get_inode(struct super_block *sb, u64 ino,
u32 generation)
{
@@ -484,6 +502,7 @@ static struct dentry *affs_fh_to_parent(
const struct export_operations affs_export_ops = {
.fh_to_dentry = affs_fh_to_dentry,
.fh_to_parent = affs_fh_to_parent,
+ .get_parent = affs_get_parent,
};
const struct dentry_operations affs_dentry_operations = {
_
Patches currently in -mm which might be from fabf@xxxxxxxxx are
documentation-filesystems-proctxt-add-vmpin.patch
fs-affs-remove-reference-to-affs_parent_ino.patch
fs-affs-add-validation-block-function.patch
fs-affs-make-affs-exportable.patch
fs-affs-use-octal-for-permissions.patch
fs-affs-add-prefix-to-some-functions.patch
fs-affs-nameic-forward-declarations-clean-up.patch
fs-affs-make-export-work-with-cold-dcache.patch
fs-add-i_blocksize.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
