A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

vfs: Add IOP_XATTR inode operations flag

Browse source 
The IOP_XATTR inode operations flag in inode->i_opflags indicates that
the inode has xattr support.  The flag is automatically set by
new_inode() on filesystems with xattr support (where sb->s_xattr is
defined), and cleared otherwise.  Filesystems can explicitly clear it
for inodes that should not have xattr support.

Signed-off-by: Andreas Gruenbacher <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Andreas Gruenbacher 2016-09-29 17:48:39 +02:00 • committed by Al Viro
commit d0a5b995a3
3 changed files with 11 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

12
fs/xattr.c
View file

@ -53,10 +53,13 @@ strcmp_prefix(const char *a, const char *a_prefix)
* Find the xattr_handler with the matching prefix.
*/
static const struct xattr_handler *
xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
xattr_resolve_name(struct inode *inode, const char **name)
{
const struct xattr_handler **handlers = inode->i_sb->s_xattr;
const struct xattr_handler *handler;
if (!(inode->i_opflags & IOP_XATTR))
return ERR_PTR(-EOPNOTSUPP);
for_each_xattr_handler(handlers, handler) {
const char *n;
@ -298,6 +301,7 @@ nolsm:
error = -EOPNOTSUPP;
return error;
}
EXPORT_SYMBOL_GPL(vfs_getxattr);
@ -700,7 +704,7 @@ generic_getxattr(struct dentry *dentry, struct inode *inode,
{
const struct xattr_handler *handler;
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
handler = xattr_resolve_name(inode, &name);
if (IS_ERR(handler))
return PTR_ERR(handler);
return handler->get(handler, dentry, inode,
@ -755,7 +759,7 @@ generic_setxattr(struct dentry *dentry, struct inode *inode, const char *name,
if (size == 0)
value = ""; /* empty EA, do not remove */
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
handler = xattr_resolve_name(inode, &name);
if (IS_ERR(handler))
return PTR_ERR(handler);
return handler->set(handler, dentry, inode, name, value, size, flags);
@ -770,7 +774,7 @@ generic_removexattr(struct dentry *dentry, const char *name)
{
const struct xattr_handler *handler;
handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name);
handler = xattr_resolve_name(d_inode(dentry), &name);
if (IS_ERR(handler))
return PTR_ERR(handler);
return handler->set(handler, dentry, d_inode(dentry), name, NULL,