aboutsummaryrefslogtreecommitdiffstats
path: root/fs/gfs2/ops_export.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/gfs2/ops_export.c')
-rw-r--r--fs/gfs2/ops_export.c38
1 files changed, 15 insertions, 23 deletions
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 0fe14478a54d..e317db2a5548 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -27,12 +27,7 @@
27#include "util.h" 27#include "util.h"
28 28
29#define GFS2_SMALL_FH_SIZE 4 29#define GFS2_SMALL_FH_SIZE 4
30#define GFS2_LARGE_FH_SIZE 10 30#define GFS2_LARGE_FH_SIZE 8
31
32struct gfs2_fh_obj {
33 struct gfs2_inum_host this;
34 u32 imode;
35};
36 31
37static struct dentry *gfs2_decode_fh(struct super_block *sb, 32static struct dentry *gfs2_decode_fh(struct super_block *sb,
38 __u32 *p, 33 __u32 *p,
@@ -43,11 +38,8 @@ static struct dentry *gfs2_decode_fh(struct super_block *sb,
43 void *context) 38 void *context)
44{ 39{
45 __be32 *fh = (__force __be32 *)p; 40 __be32 *fh = (__force __be32 *)p;
46 struct gfs2_fh_obj fh_obj; 41 struct gfs2_inum_host inum, parent;
47 struct gfs2_inum_host *this, parent;
48 42
49 this = &fh_obj.this;
50 fh_obj.imode = DT_UNKNOWN;
51 memset(&parent, 0, sizeof(struct gfs2_inum)); 43 memset(&parent, 0, sizeof(struct gfs2_inum));
52 44
53 switch (fh_len) { 45 switch (fh_len) {
@@ -56,18 +48,17 @@ static struct dentry *gfs2_decode_fh(struct super_block *sb,
56 parent.no_formal_ino |= be32_to_cpu(fh[5]); 48 parent.no_formal_ino |= be32_to_cpu(fh[5]);
57 parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32; 49 parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32;
58 parent.no_addr |= be32_to_cpu(fh[7]); 50 parent.no_addr |= be32_to_cpu(fh[7]);
59 fh_obj.imode = be32_to_cpu(fh[8]);
60 case GFS2_SMALL_FH_SIZE: 51 case GFS2_SMALL_FH_SIZE:
61 this->no_formal_ino = ((u64)be32_to_cpu(fh[0])) << 32; 52 inum.no_formal_ino = ((u64)be32_to_cpu(fh[0])) << 32;
62 this->no_formal_ino |= be32_to_cpu(fh[1]); 53 inum.no_formal_ino |= be32_to_cpu(fh[1]);
63 this->no_addr = ((u64)be32_to_cpu(fh[2])) << 32; 54 inum.no_addr = ((u64)be32_to_cpu(fh[2])) << 32;
64 this->no_addr |= be32_to_cpu(fh[3]); 55 inum.no_addr |= be32_to_cpu(fh[3]);
65 break; 56 break;
66 default: 57 default:
67 return NULL; 58 return NULL;
68 } 59 }
69 60
70 return gfs2_export_ops.find_exported_dentry(sb, &fh_obj, &parent, 61 return gfs2_export_ops.find_exported_dentry(sb, &inum, &parent,
71 acceptable, context); 62 acceptable, context);
72} 63}
73 64
@@ -102,9 +93,6 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *p, int *len,
102 fh[5] = cpu_to_be32(ip->i_no_formal_ino & 0xFFFFFFFF); 93 fh[5] = cpu_to_be32(ip->i_no_formal_ino & 0xFFFFFFFF);
103 fh[6] = cpu_to_be32(ip->i_no_addr >> 32); 94 fh[6] = cpu_to_be32(ip->i_no_addr >> 32);
104 fh[7] = cpu_to_be32(ip->i_no_addr & 0xFFFFFFFF); 95 fh[7] = cpu_to_be32(ip->i_no_addr & 0xFFFFFFFF);
105
106 fh[8] = cpu_to_be32(inode->i_mode);
107 fh[9] = 0; /* pad to double word */
108 *len = GFS2_LARGE_FH_SIZE; 96 *len = GFS2_LARGE_FH_SIZE;
109 97
110 iput(inode); 98 iput(inode);
@@ -201,8 +189,7 @@ static struct dentry *gfs2_get_parent(struct dentry *child)
201static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj) 189static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
202{ 190{
203 struct gfs2_sbd *sdp = sb->s_fs_info; 191 struct gfs2_sbd *sdp = sb->s_fs_info;
204 struct gfs2_fh_obj *fh_obj = (struct gfs2_fh_obj *)inum_obj; 192 struct gfs2_inum_host *inum = inum_obj;
205 struct gfs2_inum_host *inum = &fh_obj->this;
206 struct gfs2_holder i_gh, ri_gh, rgd_gh; 193 struct gfs2_holder i_gh, ri_gh, rgd_gh;
207 struct gfs2_rgrpd *rgd; 194 struct gfs2_rgrpd *rgd;
208 struct inode *inode; 195 struct inode *inode;
@@ -245,9 +232,9 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
245 gfs2_glock_dq_uninit(&rgd_gh); 232 gfs2_glock_dq_uninit(&rgd_gh);
246 gfs2_glock_dq_uninit(&ri_gh); 233 gfs2_glock_dq_uninit(&ri_gh);
247 234
248 inode = gfs2_inode_lookup(sb, fh_obj->imode, 235 inode = gfs2_inode_lookup(sb, DT_UNKNOWN,
249 inum->no_addr, 236 inum->no_addr,
250 inum->no_formal_ino); 237 0);
251 if (!inode) 238 if (!inode)
252 goto fail; 239 goto fail;
253 if (IS_ERR(inode)) { 240 if (IS_ERR(inode)) {
@@ -260,6 +247,11 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
260 iput(inode); 247 iput(inode);
261 goto fail; 248 goto fail;
262 } 249 }
250
251 /* Pick up the works we bypass in gfs2_inode_lookup */
252 if (inode->i_state & I_NEW)
253 gfs2_set_iop(inode);
254
263 if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) { 255 if (GFS2_I(inode)->i_no_formal_ino != inum->no_formal_ino) {
264 iput(inode); 256 iput(inode);
265 goto fail; 257 goto fail;