NFS: Clean up nfs_create_request comments
Remove some stale comments about hard limits which went away in 2.5. Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
parent
61322b3013
commit
a19b89cad5
|
@ -51,9 +51,7 @@ nfs_page_free(struct nfs_page *p)
|
||||||
* @count: number of bytes to read/write
|
* @count: number of bytes to read/write
|
||||||
*
|
*
|
||||||
* The page must be locked by the caller. This makes sure we never
|
* The page must be locked by the caller. This makes sure we never
|
||||||
* create two different requests for the same page, and avoids
|
* create two different requests for the same page.
|
||||||
* a possible deadlock when we reach the hard limit on the number
|
|
||||||
* of dirty pages.
|
|
||||||
* User should ensure it is safe to sleep in this function.
|
* User should ensure it is safe to sleep in this function.
|
||||||
*/
|
*/
|
||||||
struct nfs_page *
|
struct nfs_page *
|
||||||
|
@ -64,16 +62,12 @@ nfs_create_request(struct nfs_open_context *ctx, struct inode *inode,
|
||||||
struct nfs_server *server = NFS_SERVER(inode);
|
struct nfs_server *server = NFS_SERVER(inode);
|
||||||
struct nfs_page *req;
|
struct nfs_page *req;
|
||||||
|
|
||||||
/* Deal with hard limits. */
|
|
||||||
for (;;) {
|
for (;;) {
|
||||||
/* try to allocate the request struct */
|
/* try to allocate the request struct */
|
||||||
req = nfs_page_alloc();
|
req = nfs_page_alloc();
|
||||||
if (req != NULL)
|
if (req != NULL)
|
||||||
break;
|
break;
|
||||||
|
|
||||||
/* Try to free up at least one request in order to stay
|
|
||||||
* below the hard limit
|
|
||||||
*/
|
|
||||||
if (signalled() && (server->flags & NFS_MOUNT_INTR))
|
if (signalled() && (server->flags & NFS_MOUNT_INTR))
|
||||||
return ERR_PTR(-ERESTARTSYS);
|
return ERR_PTR(-ERESTARTSYS);
|
||||||
yield();
|
yield();
|
||||||
|
|
Loading…
Reference in New Issue