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authorWendy Cheng <wcheng@redhat.com>2007-06-27 17:07:08 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 03:24:08 -0400
commitbb9bcf061660661c57ddcf31337529f82414b937 (patch)
tree0876874e5252c4939b8e7bbd62a22a6eb4ad1abf /fs/gfs2
parentf4fadb23ca49abd2f1387a0b7e78b385ebc760ce (diff)
[GFS2] Obtaining no_formal_ino from directory entry
GFS2 lookup code doesn't ask for inode shared glock. This implies during in-memory inode creation for existing file, GFS2 will not disk-read in the inode contents. This leaves no_formal_ino un-initialized during lookup time. The un-initialized no_formal_ino is subsequently encoded into file handle. Clients will get ESTALE error whenever it tries to access these files. Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/dir.c7
-rw-r--r--fs/gfs2/inode.c10
-rw-r--r--fs/gfs2/inode.h3
-rw-r--r--fs/gfs2/ops_export.c4
-rw-r--r--fs/gfs2/ops_fstype.c2
-rw-r--r--fs/gfs2/rgrp.c11
6 files changed, 24 insertions, 13 deletions
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index f793e31a050e..2beb2f401aa2 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1498,9 +1498,10 @@ struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *name)
1498 if (dent) { 1498 if (dent) {
1499 if (IS_ERR(dent)) 1499 if (IS_ERR(dent))
1500 return ERR_PTR(PTR_ERR(dent)); 1500 return ERR_PTR(PTR_ERR(dent));
1501 inode = gfs2_inode_lookup(dir->i_sb, 1501 inode = gfs2_inode_lookup(dir->i_sb,
1502 be64_to_cpu(dent->de_inum.no_addr), 1502 be16_to_cpu(dent->de_type),
1503 be16_to_cpu(dent->de_type)); 1503 be64_to_cpu(dent->de_inum.no_addr),
1504 be64_to_cpu(dent->de_inum.no_formal_ino));
1504 brelse(bh); 1505 brelse(bh);
1505 return inode; 1506 return inode;
1506 } 1507 }
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 792d64f69cc2..26aaf54959d9 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -86,7 +86,10 @@ static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr)
86 * Returns: A VFS inode, or an error 86 * Returns: A VFS inode, or an error
87 */ 87 */
88 88
89struct inode *gfs2_inode_lookup(struct super_block *sb, u64 no_addr, unsigned int type) 89struct inode *gfs2_inode_lookup(struct super_block *sb,
90 unsigned int type,
91 u64 no_addr,
92 u64 no_formal_ino)
90{ 93{
91 struct inode *inode = gfs2_iget(sb, no_addr); 94 struct inode *inode = gfs2_iget(sb, no_addr);
92 struct gfs2_inode *ip = GFS2_I(inode); 95 struct gfs2_inode *ip = GFS2_I(inode);
@@ -100,6 +103,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, u64 no_addr, unsigned in
100 struct gfs2_sbd *sdp = GFS2_SB(inode); 103 struct gfs2_sbd *sdp = GFS2_SB(inode);
101 umode_t mode; 104 umode_t mode;
102 inode->i_private = ip; 105 inode->i_private = ip;
106 ip->i_no_formal_ino = no_formal_ino;
103 107
104 error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); 108 error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl);
105 if (unlikely(error)) 109 if (unlikely(error))
@@ -915,7 +919,9 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
915 if (error) 919 if (error)
916 goto fail_gunlock2; 920 goto fail_gunlock2;
917 921
918 inode = gfs2_inode_lookup(dir->i_sb, inum.no_addr, IF2DT(mode)); 922 inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode),
923 inum.no_addr,
924 inum.no_formal_ino);
919 if (IS_ERR(inode)) 925 if (IS_ERR(inode))
920 goto fail_gunlock2; 926 goto fail_gunlock2;
921 927
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 35375fc43fa3..3268a2fed672 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -47,7 +47,8 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
47 47
48 48
49void gfs2_inode_attr_in(struct gfs2_inode *ip); 49void gfs2_inode_attr_in(struct gfs2_inode *ip);
50struct inode *gfs2_inode_lookup(struct super_block *sb, u64 no_addr, unsigned type); 50struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
51 u64 no_addr, u64 no_formal_ino);
51struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr); 52struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
52 53
53int gfs2_inode_refresh(struct gfs2_inode *ip); 54int gfs2_inode_refresh(struct gfs2_inode *ip);
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index d07230ee5fc0..0fe14478a54d 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -245,7 +245,9 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
245 gfs2_glock_dq_uninit(&rgd_gh); 245 gfs2_glock_dq_uninit(&rgd_gh);
246 gfs2_glock_dq_uninit(&ri_gh); 246 gfs2_glock_dq_uninit(&ri_gh);
247 247
248 inode = gfs2_inode_lookup(sb, inum->no_addr, fh_obj->imode); 248 inode = gfs2_inode_lookup(sb, fh_obj->imode,
249 inum->no_addr,
250 inum->no_formal_ino);
249 if (!inode) 251 if (!inode)
250 goto fail; 252 goto fail;
251 if (IS_ERR(inode)) { 253 if (IS_ERR(inode)) {
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index dae1d7142fe5..cf5aa5050548 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -236,7 +236,7 @@ fail:
236static inline struct inode *gfs2_lookup_root(struct super_block *sb, 236static inline struct inode *gfs2_lookup_root(struct super_block *sb,
237 u64 no_addr) 237 u64 no_addr)
238{ 238{
239 return gfs2_inode_lookup(sb, no_addr, DT_DIR); 239 return gfs2_inode_lookup(sb, DT_DIR, no_addr, 0);
240} 240}
241 241
242static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) 242static int init_sb(struct gfs2_sbd *sdp, int silent, int undo)
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 36c523d487a7..7fb74484af63 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -860,18 +860,19 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked)
860{ 860{
861 struct inode *inode; 861 struct inode *inode;
862 u32 goal = 0; 862 u32 goal = 0;
863 u64 ino; 863 u64 no_addr;
864 864
865 for(;;) { 865 for(;;) {
866 goal = rgblk_search(rgd, goal, GFS2_BLKST_UNLINKED, 866 goal = rgblk_search(rgd, goal, GFS2_BLKST_UNLINKED,
867 GFS2_BLKST_UNLINKED); 867 GFS2_BLKST_UNLINKED);
868 if (goal == 0) 868 if (goal == 0)
869 return 0; 869 return 0;
870 ino = goal + rgd->rd_data0; 870 no_addr = goal + rgd->rd_data0;
871 if (ino <= *last_unlinked) 871 if (no_addr <= *last_unlinked)
872 continue; 872 continue;
873 *last_unlinked = ino; 873 *last_unlinked = no_addr;
874 inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, ino, DT_UNKNOWN); 874 inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, DT_UNKNOWN,
875 no_addr, 0);
875 if (!IS_ERR(inode)) 876 if (!IS_ERR(inode))
876 return inode; 877 return inode;
877 } 878 }