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author | Ingo Molnar <mingo@elte.hu> | 2009-05-18 08:15:09 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-18 08:15:35 (GMT) |
commit | 1079cac0f4eb7d968395378b1625979d4c818dd6 (patch) | |
tree | d261058d95d27fe7250511d5fad69db30dc17731 /fs/cifs/link.c | |
parent | 5872144f64b34a5942f6b4acedc90b02de72c58b (diff) | |
parent | 1406de8e11eb043681297adf86d6892ff8efc27a (diff) | |
download | linux-fsl-qoriq-1079cac0f4eb7d968395378b1625979d4c818dd6.tar.xz |
Merge commit 'v2.6.30-rc6' into tracing/core
Merge reason: we were on an -rc4 base, sync up to -rc6
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/cifs/link.c')
-rw-r--r-- | fs/cifs/link.c | 114 |
1 files changed, 5 insertions, 109 deletions
diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 63f6440..ea9d11e 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -119,16 +119,11 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) full_path = build_path_from_dentry(direntry); if (!full_path) - goto out_no_free; + goto out; cFYI(1, ("Full path: %s inode = 0x%p", full_path, inode)); cifs_sb = CIFS_SB(inode->i_sb); pTcon = cifs_sb->tcon; - target_path = kmalloc(PATH_MAX, GFP_KERNEL); - if (!target_path) { - target_path = ERR_PTR(-ENOMEM); - goto out; - } /* We could change this to: if (pTcon->unix_ext) @@ -138,8 +133,7 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) if (pTcon->ses->capabilities & CAP_UNIX) rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, - target_path, - PATH_MAX-1, + &target_path, cifs_sb->local_nls); else { /* BB add read reparse point symlink code here */ @@ -148,22 +142,16 @@ cifs_follow_link(struct dentry *direntry, struct nameidata *nd) /* BB Add MAC style xsymlink check here if enabled */ } - if (rc == 0) { - -/* BB Add special case check for Samba DFS symlinks */ - - target_path[PATH_MAX-1] = 0; - } else { + if (rc != 0) { kfree(target_path); target_path = ERR_PTR(rc); } -out: kfree(full_path); -out_no_free: +out: FreeXid(xid); nd_set_link(nd, target_path); - return NULL; /* No cookie */ + return NULL; } int @@ -224,98 +212,6 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname) return rc; } -int -cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen) -{ - struct inode *inode = direntry->d_inode; - int rc = -EACCES; - int xid; - int oplock = 0; - struct cifs_sb_info *cifs_sb; - struct cifsTconInfo *pTcon; - char *full_path = NULL; - char *tmpbuffer; - int len; - __u16 fid; - - xid = GetXid(); - cifs_sb = CIFS_SB(inode->i_sb); - pTcon = cifs_sb->tcon; - -/* BB would it be safe against deadlock to grab this sem - even though rename itself grabs the sem and calls lookup? */ -/* mutex_lock(&inode->i_sb->s_vfs_rename_mutex);*/ - full_path = build_path_from_dentry(direntry); -/* mutex_unlock(&inode->i_sb->s_vfs_rename_mutex);*/ - - if (full_path == NULL) { - FreeXid(xid); - return -ENOMEM; - } - - cFYI(1, - ("Full path: %s inode = 0x%p pBuffer = 0x%p buflen = %d", - full_path, inode, pBuffer, buflen)); - if (buflen > PATH_MAX) - len = PATH_MAX; - else - len = buflen; - tmpbuffer = kmalloc(len, GFP_KERNEL); - if (tmpbuffer == NULL) { - kfree(full_path); - FreeXid(xid); - return -ENOMEM; - } - -/* BB add read reparse point symlink code and - Unix extensions symlink code here BB */ -/* We could disable this based on pTcon->unix_ext flag instead ... but why? */ - if (cifs_sb->tcon->ses->capabilities & CAP_UNIX) - rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path, - tmpbuffer, - len - 1, - cifs_sb->local_nls); - else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) { - cERROR(1, ("SFU style symlinks not implemented yet")); - /* add open and read as in fs/cifs/inode.c */ - } else { - rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN, GENERIC_READ, - OPEN_REPARSE_POINT, &fid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (!rc) { - rc = CIFSSMBQueryReparseLinkInfo(xid, pTcon, full_path, - tmpbuffer, - len - 1, - fid, - cifs_sb->local_nls); - if (CIFSSMBClose(xid, pTcon, fid)) { - cFYI(1, ("Error closing junction point " - "(open for ioctl)")); - } - /* If it is a DFS junction earlier we would have gotten - PATH_NOT_COVERED returned from server so we do - not need to request the DFS info here */ - } - } - /* BB Anything else to do to handle recursive links? */ - /* BB Should we be using page ops here? */ - - /* BB null terminate returned string in pBuffer? BB */ - if (rc == 0) { - rc = vfs_readlink(direntry, pBuffer, len, tmpbuffer); - cFYI(1, - ("vfs_readlink called from cifs_readlink returned %d", - rc)); - } - - kfree(tmpbuffer); - kfree(full_path); - FreeXid(xid); - return rc; -} - void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie) { char *p = nd_get_link(nd); |