Messages in this thread Patch in this message | | | Subject | [CFR][PATCH] namei fixes (4/19) | From | Al Viro <> | Date | Thu, 19 May 2005 23:56:21 +0100 |
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(4/19)
path.mnt in open_namei() set to mirror nd->mnt.
nd->mnt is set in 3 places in that function - path_lookup() in the beginning, __follow_down() loop after do_last: and __do_follow_link() call after do_link:.
We set path.mnt to nd->mnt after path_lookup() and __do_follow_link(). In __follow_down() loop we use &path.mnt instead of &nd->mnt and set nd->mnt to path.mnt immediately after that loop.
Obviously equivalent transformation.
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> ---- diff -urN RC12-rc4-3/fs/namei.c RC12-rc4-4/fs/namei.c --- RC12-rc4-3/fs/namei.c 2005-05-19 16:39:31.314263905 -0400 +++ RC12-rc4-4/fs/namei.c 2005-05-19 16:39:32.418043961 -0400 @@ -1442,6 +1442,7 @@ nd->flags &= ~LOOKUP_PARENT; down(&dir->d_inode->i_sem); path.dentry = __lookup_hash(&nd->last, nd->dentry, nd); + path.mnt = nd->mnt; do_last: error = PTR_ERR(path.dentry); @@ -1479,7 +1480,8 @@ error = -ELOOP; if (flag & O_NOFOLLOW) goto exit_dput; - while (__follow_down(&nd->mnt,&path.dentry) && d_mountpoint(path.dentry)); + while (__follow_down(&path.mnt,&path.dentry) && d_mountpoint(path.dentry)); + nd->mnt = path.mnt; } error = -ENOENT; if (!path.dentry->d_inode) @@ -1524,6 +1526,7 @@ goto exit_dput; error = __do_follow_link(path.dentry, nd); dput(path.dentry); + path.mnt = nd->mnt; if (error) return error; nd->flags &= ~LOOKUP_PARENT; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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