diff options
| -rw-r--r-- | fs/gfs2/ops_export.c | 81 |
1 files changed, 43 insertions, 38 deletions
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c index e2d1347796a..c291005ec59 100644 --- a/fs/gfs2/ops_export.c +++ b/fs/gfs2/ops_export.c @@ -31,40 +31,6 @@ #define GFS2_LARGE_FH_SIZE 8 #define GFS2_OLD_FH_SIZE 10 -static struct dentry *gfs2_decode_fh(struct super_block *sb, - __u32 *p, - int fh_len, - int fh_type, - int (*acceptable)(void *context, - struct dentry *dentry), - void *context) -{ - __be32 *fh = (__force __be32 *)p; - struct gfs2_inum_host inum, parent; - - memset(&parent, 0, sizeof(struct gfs2_inum)); - - switch (fh_len) { - case GFS2_LARGE_FH_SIZE: - case GFS2_OLD_FH_SIZE: - parent.no_formal_ino = ((u64)be32_to_cpu(fh[4])) << 32; - parent.no_formal_ino |= be32_to_cpu(fh[5]); - parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32; - parent.no_addr |= be32_to_cpu(fh[7]); - case GFS2_SMALL_FH_SIZE: - inum.no_formal_ino = ((u64)be32_to_cpu(fh[0])) << 32; - inum.no_formal_ino |= be32_to_cpu(fh[1]); - inum.no_addr = ((u64)be32_to_cpu(fh[2])) << 32; - inum.no_addr |= be32_to_cpu(fh[3]); - break; - default: - return NULL; - } - - return gfs2_export_ops.find_exported_dentry(sb, &inum, &parent, - acceptable, context); -} - static int gfs2_encode_fh(struct dentry *dentry, __u32 *p, int *len, int connectable) { @@ -189,10 +155,10 @@ static struct dentry *gfs2_get_parent(struct dentry *child) return dentry; } -static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj) +static struct dentry *gfs2_get_dentry(struct super_block *sb, + struct gfs2_inum_host *inum) { struct gfs2_sbd *sdp = sb->s_fs_info; - struct gfs2_inum_host *inum = inum_obj; struct gfs2_holder i_gh, ri_gh, rgd_gh; struct gfs2_rgrpd *rgd; struct inode *inode; @@ -289,11 +255,50 @@ fail: return ERR_PTR(error); } +static struct dentry *gfs2_fh_to_dentry(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type) +{ + struct gfs2_inum_host this; + __be32 *fh = (__force __be32 *)fid->raw; + + switch (fh_type) { + case GFS2_SMALL_FH_SIZE: + case GFS2_LARGE_FH_SIZE: + case GFS2_OLD_FH_SIZE: + this.no_formal_ino = ((u64)be32_to_cpu(fh[0])) << 32; + this.no_formal_ino |= be32_to_cpu(fh[1]); + this.no_addr = ((u64)be32_to_cpu(fh[2])) << 32; + this.no_addr |= be32_to_cpu(fh[3]); + return gfs2_get_dentry(sb, &this); + default: + return NULL; + } +} + +static struct dentry *gfs2_fh_to_parent(struct super_block *sb, struct fid *fid, + int fh_len, int fh_type) +{ + struct gfs2_inum_host parent; + __be32 *fh = (__force __be32 *)fid->raw; + + switch (fh_type) { + case GFS2_LARGE_FH_SIZE: + case GFS2_OLD_FH_SIZE: + parent.no_formal_ino = ((u64)be32_to_cpu(fh[4])) << 32; + parent.no_formal_ino |= be32_to_cpu(fh[5]); + parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32; + parent.no_addr |= be32_to_cpu(fh[7]); + return gfs2_get_dentry(sb, &parent); + default: + return NULL; + } +} + struct export_operations gfs2_export_ops = { - .decode_fh = gfs2_decode_fh, .encode_fh = gfs2_encode_fh, + .fh_to_dentry = gfs2_fh_to_dentry, + .fh_to_parent = gfs2_fh_to_parent, .get_name = gfs2_get_name, .get_parent = gfs2_get_parent, - .get_dentry = gfs2_get_dentry, }; |