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authorAndreas Gruenbacher <agruenba@redhat.com>2016-06-14 20:23:59 +0300
committerBob Peterson <rpeterso@redhat.com>2016-06-27 17:47:08 +0300
commitec5ec66ba48bd3163110599359797858ac38e79b (patch)
tree1e458e0013387f255edee8cdd96e005d83f4ed9e /fs/gfs2
parent3ce37b2cb4917674fa5b776e857dcea94c0e0835 (diff)
downloadlinux-ec5ec66ba48bd3163110599359797858ac38e79b.tar.xz
gfs2: Get rid of gfs2_ilookup
Now that gfs2_lookup_by_inum only takes the inode glock for new inodes (and not for cached inodes anymore), there no longer is a need to optimize the cached-inode case in gfs2_get_dentry or delete_work_func, and gfs2_ilookup can be removed. In addition, gfs2_get_dentry wasn't checking the GFS2_DIF_SYSTEM flag in i_diskflags in the gfs2_ilookup case (see gfs2_lookup_by_inum); this inconsistency goes away as well. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/export.c11
-rw-r--r--fs/gfs2/glock.c11
-rw-r--r--fs/gfs2/inode.c15
-rw-r--r--fs/gfs2/inode.h1
4 files changed, 2 insertions, 36 deletions
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index d5bda8513457..a332f3cd925e 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -137,21 +137,10 @@ 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);
- if (inode) {
- if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) {
- iput(inode);
- return ERR_PTR(-ESTALE);
- }
- goto out_inode;
- }
-
inode = gfs2_lookup_by_inum(sdp, inum->no_addr, &inum->no_formal_ino,
GFS2_BLKST_DINODE);
if (IS_ERR(inode))
return ERR_CAST(inode);
-
-out_inode:
return d_obtain_alias(inode);
}
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index ce4637518d3b..1138a6131c61 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -575,8 +575,7 @@ static void delete_work_func(struct work_struct *work)
{
struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_delete);
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
- struct gfs2_inode *ip;
- struct inode *inode = NULL;
+ struct inode *inode;
u64 no_addr = gl->gl_name.ln_number;
/* If someone's using this glock to create a new dinode, the block must
@@ -585,13 +584,7 @@ static void delete_work_func(struct work_struct *work)
if (test_bit(GLF_INODE_CREATING, &gl->gl_flags))
goto out;
- ip = gl->gl_object;
- /* Note: Unsafe to dereference ip as we don't hold right refs/locks */
-
- if (ip)
- inode = gfs2_ilookup(sdp->sd_vfs, no_addr);
- if (IS_ERR_OR_NULL(inode))
- inode = gfs2_lookup_by_inum(sdp, no_addr, NULL, GFS2_BLKST_UNLINKED);
+ inode = gfs2_lookup_by_inum(sdp, no_addr, NULL, GFS2_BLKST_UNLINKED);
if (inode && !IS_ERR(inode)) {
d_prune_aliases(inode);
iput(inode);
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 6d5c6bbec416..ebff26ee6865 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -37,21 +37,6 @@
#include "super.h"
#include "glops.h"
-struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr)
-{
- struct inode *inode;
-
-repeat:
- inode = ilookup(sb, no_addr);
- if (!inode)
- return inode;
- if (is_bad_inode(inode)) {
- iput(inode);
- goto repeat;
- }
- return inode;
-}
-
static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr)
{
struct inode *inode;
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 443b46cfb8f2..7710dfd3af35 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -99,7 +99,6 @@ 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 int gfs2_inode_refresh(struct gfs2_inode *ip);