diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
| commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
| tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /include/linux/nfs_page.h | |
| parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
| parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) | |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/nfs_page.h')
| -rw-r--r-- | include/linux/nfs_page.h | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index ab465fe8c3d6..eac30d6bec17 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -19,12 +19,6 @@ #include <linux/kref.h> /* - * Valid flags for the radix tree - */ -#define NFS_PAGE_TAG_LOCKED 0 -#define NFS_PAGE_TAG_COMMIT 1 - -/* * Valid flags for a dirty buffer */ enum { @@ -33,16 +27,13 @@ enum { PG_CLEAN, PG_NEED_COMMIT, PG_NEED_RESCHED, - PG_PNFS_COMMIT, PG_PARTIAL_READ_FAILED, + PG_COMMIT_TO_DS, }; struct nfs_inode; struct nfs_page { - union { - struct list_head wb_list; /* Defines state of page: */ - struct pnfs_layout_segment *wb_commit_lseg; /* Used when PG_PNFS_COMMIT set */ - }; + struct list_head wb_list; /* Defines state of page: */ struct page *wb_page; /* page to read in/write out */ struct nfs_open_context *wb_context; /* File state context info */ struct nfs_lock_context *wb_lock_context; /* lock context info */ @@ -90,8 +81,6 @@ extern struct nfs_page *nfs_create_request(struct nfs_open_context *ctx, extern void nfs_release_request(struct nfs_page *req); -extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst, - pgoff_t idx_start, unsigned int npages, int tag); extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc, struct inode *inode, const struct nfs_pageio_ops *pg_ops, @@ -106,8 +95,6 @@ extern bool nfs_generic_pg_test(struct nfs_pageio_descriptor *desc, struct nfs_page *req); extern int nfs_wait_on_request(struct nfs_page *); extern void nfs_unlock_request(struct nfs_page *req); -extern int nfs_set_page_tag_locked(struct nfs_page *req); -extern void nfs_clear_page_tag_locked(struct nfs_page *req); /* * Lock the page of an asynchronous request without getting a new reference @@ -118,6 +105,16 @@ nfs_lock_request_dontget(struct nfs_page *req) return !test_and_set_bit(PG_BUSY, &req->wb_flags); } +static inline int +nfs_lock_request(struct nfs_page *req) +{ + if (test_and_set_bit(PG_BUSY, &req->wb_flags)) + return 0; + kref_get(&req->wb_kref); + return 1; +} + + /** * nfs_list_add_request - Insert a request into a list * @req: request |