Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=34c0d154243dd913c5690ae6ceb9557017429b9c
Commit: 34c0d154243dd913c5690ae6ceb9557017429b9c
Parent: be55caf177e14bc54d1498d599a78849b0b230bb
Author: Christoph Hellwig <[EMAIL PROTECTED]>
AuthorDate: Sun Oct 21 16:42:14 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Mon Oct 22 08:13:20 2007 -0700
gfs2: new export ops
Convert gfs2 to the new ops. Uses a similar structure to the generic
helpers,
but gfs2 has it's own file handle formats.
Signed-off-by: Christoph Hellwig <[EMAIL PROTECTED]>
Cc: Neil Brown <[EMAIL PROTECTED]>
Cc: "J. Bruce Fields" <[EMAIL PROTECTED]>
Cc: Steven Whitehouse <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
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 e2d1347..c291005 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,
};
-
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