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| author | David Howells <dhowells@redhat.com> | 2008-02-07 00:15:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 08:42:27 -0800 |
| commit | ce634ab28e7dbcc13ebe6e7bc5bc7de4f8def4c8 (patch) | |
| tree | cb19d7c04a3f503f8f1c026c861a3f21b5283e2b /fs/cifs | |
| parent | e33ab086ae227a34e34b17e86dbb9d2dbaebb489 (diff) | |
| download | linux-3.10-ce634ab28e7dbcc13ebe6e7bc5bc7de4f8def4c8.tar.gz linux-3.10-ce634ab28e7dbcc13ebe6e7bc5bc7de4f8def4c8.tar.bz2 linux-3.10-ce634ab28e7dbcc13ebe6e7bc5bc7de4f8def4c8.zip | |
iget: stop CIFS from using iget() and read_inode()
Stop the CIFS filesystem from using iget() and read_inode(). Replace
cifs_read_inode() with cifs_iget(), and call that instead of iget().
cifs_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.
cifs_read_super() now returns any error incurred when getting the root inode
instead of ENOMEM.
cifs_iget() needs examining. The comment "can not call macro FreeXid here
since in a void func" is no longer true.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Steven French <sfrench@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 8 | ||||
| -rw-r--r-- | fs/cifs/cifsfs.h | 1 | ||||
| -rw-r--r-- | fs/cifs/inode.c | 22 |
3 files changed, 24 insertions, 7 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index e9f4ec70109..fcc43422769 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -147,10 +147,11 @@ cifs_read_super(struct super_block *sb, void *data, #endif sb->s_blocksize = CIFS_MAX_MSGSIZE; sb->s_blocksize_bits = 14; /* default 2**14 = CIFS_MAX_MSGSIZE */ - inode = iget(sb, ROOT_I); + inode = cifs_iget(sb, ROOT_I); - if (!inode) { - rc = -ENOMEM; + if (IS_ERR(inode)) { + rc = PTR_ERR(inode); + inode = NULL; goto out_no_root; } @@ -520,7 +521,6 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data) } static const struct super_operations cifs_super_ops = { - .read_inode = cifs_read_inode, .put_super = cifs_put_super, .statfs = cifs_statfs, .alloc_inode = cifs_alloc_inode, diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 195b14de556..68978306c3c 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -44,6 +44,7 @@ extern void cifs_read_inode(struct inode *); /* Functions related to inodes */ extern const struct inode_operations cifs_dir_inode_ops; +extern struct inode *cifs_iget(struct super_block *, unsigned long); extern int cifs_create(struct inode *, struct dentry *, int, struct nameidata *); extern struct dentry *cifs_lookup(struct inode *, struct dentry *, diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 47f2621001e..b1a4a65eaa0 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -586,10 +586,18 @@ static const struct inode_operations cifs_ipc_inode_ops = { }; /* gets root inode */ -void cifs_read_inode(struct inode *inode) +struct inode *cifs_iget(struct super_block *sb, unsigned long ino) { - int xid, rc; + int xid; struct cifs_sb_info *cifs_sb; + struct inode *inode; + long rc; + + inode = iget_locked(sb, ino); + if (!inode) + return ERR_PTR(-ENOMEM); + if (!(inode->i_state & I_NEW)) + return inode; cifs_sb = CIFS_SB(inode->i_sb); xid = GetXid(); @@ -606,10 +614,18 @@ void cifs_read_inode(struct inode *inode) inode->i_fop = &simple_dir_operations; inode->i_uid = cifs_sb->mnt_uid; inode->i_gid = cifs_sb->mnt_gid; + _FreeXid(xid); + iget_failed(inode); + return ERR_PTR(rc); } - /* can not call macro FreeXid here since in a void func */ + unlock_new_inode(inode); + + /* can not call macro FreeXid here since in a void func + * TODO: This is no longer true + */ _FreeXid(xid); + return inode; } int cifs_unlink(struct inode *inode, struct dentry *direntry) |