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authorChristoph Hellwig <hch@infradead.org>2007-07-17 04:04:29 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:06 -0700
commit5ca29607331fe37980dc3b488793ef8b1409b722 (patch)
treecf4e5ad786aeebc8d82d1b867ab3d91d0cb4b824 /include
parenta569425512253992cc64ebf8b6d00a62f986db3e (diff)
knfsd: exportfs: remove iget abuse
When the exportfs interface was added the expectation was that filesystems provide an operation to convert from a file handle to an inode/dentry, but it kept a backwards compat option that still calls into iget. Calling into iget from non-filesystem code is very bad, because it gives too little information to filesystem, and simply crashes if the filesystem doesn't implement the ->read_inode routine. Fortunately there are only two filesystems left using this fallback: efs and jfs. This patch moves a copy of export_iget to each of those to implement the get_dentry method. While this is a temporary increase of lines of code in the kernel it allows for a much cleaner interface and important code restructuring in later patches. [akpm@linux-foundation.org: add jfs_get_inode_flags() declaration] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/efs_fs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/efs_fs.h b/include/linux/efs_fs.h
index dfed8009ebff..16cb25cbf7c5 100644
--- a/include/linux/efs_fs.h
+++ b/include/linux/efs_fs.h
@@ -45,6 +45,7 @@ extern efs_block_t efs_map_block(struct inode *, efs_block_t);
extern int efs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *);
+extern struct dentry *efs_get_dentry(struct super_block *sb, void *vobjp);
extern struct dentry *efs_get_parent(struct dentry *);
extern int efs_bmap(struct inode *, int);