diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/fs/kernfs/symlink.c | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/fs/kernfs/symlink.c')
| -rw-r--r-- | kernel/fs/kernfs/symlink.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/kernel/fs/kernfs/symlink.c b/kernel/fs/kernfs/symlink.c index 8a198898e..db272528a 100644 --- a/kernel/fs/kernfs/symlink.c +++ b/kernel/fs/kernfs/symlink.c @@ -112,25 +112,18 @@ static int kernfs_getlink(struct dentry *dentry, char *path) return error; } -static void *kernfs_iop_follow_link(struct dentry *dentry, struct nameidata *nd) +static const char *kernfs_iop_follow_link(struct dentry *dentry, void **cookie) { int error = -ENOMEM; unsigned long page = get_zeroed_page(GFP_KERNEL); - if (page) { - error = kernfs_getlink(dentry, (char *) page); - if (error < 0) - free_page((unsigned long)page); - } - nd_set_link(nd, error ? ERR_PTR(error) : (char *)page); - return NULL; -} - -static void kernfs_iop_put_link(struct dentry *dentry, struct nameidata *nd, - void *cookie) -{ - char *page = nd_get_link(nd); - if (!IS_ERR(page)) + if (!page) + return ERR_PTR(-ENOMEM); + error = kernfs_getlink(dentry, (char *)page); + if (unlikely(error < 0)) { free_page((unsigned long)page); + return ERR_PTR(error); + } + return *cookie = (char *)page; } const struct inode_operations kernfs_symlink_iops = { @@ -140,7 +133,7 @@ const struct inode_operations kernfs_symlink_iops = { .listxattr = kernfs_iop_listxattr, .readlink = generic_readlink, .follow_link = kernfs_iop_follow_link, - .put_link = kernfs_iop_put_link, + .put_link = free_page_put_link, .setattr = kernfs_iop_setattr, .getattr = kernfs_iop_getattr, .permission = kernfs_iop_permission, |