From: Bob Peterson <rpeterso@xxxxxxxxxx>
This reverts commit ff34245d524a898eee6e013eb1ec165095277148.
Signed-off-by: Bob Peterson <rpeterso@xxxxxxxxxx>
---
fs/gfs2/export.c | 2 +-
fs/gfs2/glock.c | 2 +-
fs/gfs2/inode.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
fs/gfs2/inode.h | 2 +-
4 files changed, 58 insertions(+), 6 deletions(-)
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index d5bda85..5d15e94 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -137,7 +137,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
struct gfs2_sbd *sdp = sb->s_fs_info;
struct inode *inode;
- inode = gfs2_ilookup(sb, inum->no_addr);
+ inode = gfs2_ilookup(sb, inum->no_addr, 0);
if (inode) {
if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) {
iput(inode);
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 3910cea..672de35 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -589,7 +589,7 @@ static void delete_work_func(struct work_struct *work)
/* Note: Unsafe to dereference ip as we don't hold right refs/locks */
if (ip)
- inode = gfs2_ilookup(sdp->sd_vfs, no_addr);
+ inode = gfs2_ilookup(sdp->sd_vfs, no_addr, 1);
else
inode = gfs2_lookup_by_inum(sdp, no_addr, NULL, GFS2_BLKST_UNLINKED);
if (inode && !IS_ERR(inode)) {
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index be6036a..48c1418 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -37,9 +37,61 @@
#include "super.h"
#include "glops.h"
-struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr)
+struct gfs2_skip_data {
+ u64 no_addr;
+ int skipped;
+ int non_block;
+};
+
+static int iget_test(struct inode *inode, void *opaque)
+{
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_skip_data *data = opaque;
+
+ if (ip->i_no_addr == data->no_addr) {
+ if (data->non_block &&
+ inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) {
+ data->skipped = 1;
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+static int iget_set(struct inode *inode, void *opaque)
{
- return ilookup(sb, (unsigned long)no_addr);
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_skip_data *data = opaque;
+
+ if (data->skipped)
+ return -ENOENT;
+ inode->i_ino = (unsigned long)(data->no_addr);
+ ip->i_no_addr = data->no_addr;
+ return 0;
+}
+
+struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr, int non_block)
+{
+ unsigned long hash = (unsigned long)no_addr;
+ struct gfs2_skip_data data;
+
+ data.no_addr = no_addr;
+ data.skipped = 0;
+ data.non_block = non_block;
+ return ilookup5(sb, hash, iget_test, &data);
+}
+
+static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr,
+ int non_block)
+{
+ struct gfs2_skip_data data;
+ unsigned long hash = (unsigned long)no_addr;
+
+ data.no_addr = no_addr;
+ data.skipped = 0;
+ data.non_block = non_block;
+ return iget5_locked(sb, hash, iget_test, iget_set, &data);
}
/**
@@ -93,7 +145,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
struct gfs2_glock *io_gl = NULL;
int error;
- inode = iget_locked(sb, (unsigned long)no_addr);
+ inode = gfs2_iget(sb, no_addr, non_block);
if (!inode)
return ERR_PTR(-ENOMEM);
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 22c27a8..ba4d949 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -99,7 +99,7 @@ extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
extern struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
u64 *no_formal_ino,
unsigned int blktype);
-extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
+extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr, int nonblock);
extern int gfs2_inode_refresh(struct gfs2_inode *ip);
--
2.5.5
--
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