mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage

Mostly direct substitution with occasional adjustment or removing
outdated comments.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 files changed, 18 insertions, 20 deletions

diff --git a/drivers/staging/lustre/include/linux/lnet/types.h b/drivers/staging/lustre/include/linux/lnet/types.h
index 08f193c341c5..1c679cb72785 100644
--- a/drivers/staging/lustre/include/linux/lnet/types.h
+++ b/drivers/staging/lustre/include/linux/lnet/types.h
@@ -514,7 +514,7 @@ typedef struct {
 	/**
 	 * Starting offset of the fragment within the page. Note that the
 	 * end of the fragment must not pass the end of the page; i.e.,
-	 * kiov_len + kiov_offset <= PAGE_CACHE_SIZE.
+	 * kiov_len + kiov_offset <= PAGE_SIZE.
 	 */
 	unsigned int	 kiov_offset;
 } lnet_kiov_t;
diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h
index 5321ddec9580..e689ca1846e1 100644
--- a/drivers/staging/lustre/lnet/selftest/selftest.h
+++ b/drivers/staging/lustre/lnet/selftest/selftest.h
@@ -390,8 +390,8 @@ typedef struct sfw_test_instance {
 	} tsi_u;
 } sfw_test_instance_t;
 
-/* XXX: trailing (PAGE_CACHE_SIZE % sizeof(lnet_process_id_t)) bytes at
- * the end of pages are not used */
+/* XXX: trailing (PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at the end of
+ * pages are not used */
 #define SFW_MAX_CONCUR	   LST_MAX_CONCUR
 #define SFW_ID_PER_PAGE    (PAGE_SIZE / sizeof(lnet_process_id_packed_t))
 #define SFW_MAX_NDESTS	   (LNET_MAX_IOV * SFW_ID_PER_PAGE)
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index b5088b13a305..242bb1ef6245 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -1118,7 +1118,7 @@ struct lu_context_key {
 	{							 \
 		type *value;				      \
 								  \
-		CLASSERT(PAGE_CACHE_SIZE >= sizeof (*value));       \
+		CLASSERT(PAGE_SIZE >= sizeof (*value));       \
 								  \
 		value = kzalloc(sizeof(*value), GFP_NOFS);	\
 		if (!value)				\
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 1e2ebe5cc998..5aae1d06a5fa 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -1022,10 +1022,10 @@ static inline int lu_dirent_size(struct lu_dirent *ent)
  * MDS_READPAGE page size
  *
  * This is the directory page size packed in MDS_READPAGE RPC.
- * It's different than PAGE_CACHE_SIZE because the client needs to
+ * It's different than PAGE_SIZE because the client needs to
  * access the struct lu_dirpage header packed at the beginning of
  * the "page" and without this there isn't any way to know find the
- * lu_dirpage header is if client and server PAGE_CACHE_SIZE differ.
+ * lu_dirpage header is if client and server PAGE_SIZE differ.
  */
 #define LU_PAGE_SHIFT 12
 #define LU_PAGE_SIZE  (1UL << LU_PAGE_SHIFT)
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index a5e9095fbf36..69586a522eb7 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -112,8 +112,8 @@
 # if ((PTLRPC_MAX_BRW_PAGES & (PTLRPC_MAX_BRW_PAGES - 1)) != 0)
 #  error "PTLRPC_MAX_BRW_PAGES isn't a power of two"
 # endif
-# if (PTLRPC_MAX_BRW_SIZE != (PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE))
-#  error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE"
+# if (PTLRPC_MAX_BRW_SIZE != (PTLRPC_MAX_BRW_PAGES * PAGE_SIZE))
+#  error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * PAGE_SIZE"
 # endif
 # if (PTLRPC_MAX_BRW_SIZE > LNET_MTU * PTLRPC_BULK_OPS_COUNT)
 #  error "PTLRPC_MAX_BRW_SIZE too big"
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index f4167db65b5d..4264d97650ec 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -272,7 +272,7 @@ struct client_obd {
 	int		 cl_grant_shrink_interval; /* seconds */
 
 	/* A chunk is an optimal size used by osc_extent to determine
-	 * the extent size. A chunk is max(PAGE_CACHE_SIZE, OST block size)
+	 * the extent size. A chunk is max(PAGE_SIZE, OST block size)
 	 */
 	int		  cl_chunkbits;
 	int		  cl_chunk;
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index a7c02e07fd75..e4c82883e580 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -134,9 +134,8 @@
  * a header lu_dirpage which describes the start/end hash, and whether this
  * page is empty (contains no dir entry) or hash collide with next page.
  * After client receives reply, several pages will be integrated into dir page
- * in PAGE_CACHE_SIZE (if PAGE_CACHE_SIZE greater than LU_PAGE_SIZE), and the
- * lu_dirpage for this integrated page will be adjusted. See
- * lmv_adjust_dirpages().
+ * in PAGE_SIZE (if PAGE_SIZE greater than LU_PAGE_SIZE), and the lu_dirpage
+ * for this integrated page will be adjusted. See lmv_adjust_dirpages().
  *
  */
 
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index 4c7250ab54e6..edab6c5b7e50 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -521,7 +521,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io,
  * striped over, rather than having a constant value for all files here.
  */
 
-/* RAS_INCREASE_STEP should be (1UL << (inode->i_blkbits - PAGE_CACHE_SHIFT)).
+/* RAS_INCREASE_STEP should be (1UL << (inode->i_blkbits - PAGE_SHIFT)).
  * Temporarily set RAS_INCREASE_STEP to 1MB. After 4MB RPC is enabled
  * by default, this should be adjusted corresponding with max_read_ahead_mb
  * and max_read_ahead_per_file_mb otherwise the readahead budget can be used
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index 75d4df71cab8..85a835976174 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -512,7 +512,7 @@ static int vvp_io_read_start(const struct lu_env *env,
 		vio->cui_ra_window_set = 1;
 		bead->lrr_start = cl_index(obj, pos);
 		/*
-		 * XXX: explicit PAGE_CACHE_SIZE
+		 * XXX: explicit PAGE_SIZE
 		 */
 		bead->lrr_count = cl_index(obj, tot + PAGE_SIZE - 1);
 		ll_ra_read_in(file, bead);
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index ce7e8b70dd44..9abb7c2b9231 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -2017,7 +2017,7 @@ static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid,
  * |s|e|f|p|ent| 0 | ... | 0 |
  * '-----------------   -----'
  *
- * However, on hosts where the native VM page size (PAGE_CACHE_SIZE) is
+ * However, on hosts where the native VM page size (PAGE_SIZE) is
  * larger than LU_PAGE_SIZE, a single host page may contain multiple
  * lu_dirpages. After reading the lu_dirpages from the MDS, the
  * ldp_hash_end of the first lu_dirpage refers to the one immediately
@@ -2048,7 +2048,7 @@ static int lmv_sync(struct obd_export *exp, const struct lu_fid *fid,
  * - Adjust the lde_reclen of the ending entry of each lu_dirpage to span
  *   to the first entry of the next lu_dirpage.
  */
-#if PAGE_CACHE_SIZE > LU_PAGE_SIZE
+#if PAGE_SIZE > LU_PAGE_SIZE
 static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
 {
 	int i;
@@ -2101,7 +2101,7 @@ static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs)
 }
 #else
 #define lmv_adjust_dirpages(pages, ncfspgs, nlupgs) do {} while (0)
-#endif	/* PAGE_CACHE_SIZE > LU_PAGE_SIZE */
+#endif	/* PAGE_SIZE > LU_PAGE_SIZE */
 
 static int lmv_readpage(struct obd_export *exp, struct md_op_data *op_data,
 			struct page **pages, struct ptlrpc_request **request)
@@ -2110,7 +2110,7 @@ static int lmv_readpage(struct obd_export *exp, struct md_op_data *op_data,
 	struct lmv_obd		*lmv = &obd->u.lmv;
 	__u64			offset = op_data->op_offset;
 	int			rc;
-	int			ncfspgs; /* pages read in PAGE_CACHE_SIZE */
+	int			ncfspgs; /* pages read in PAGE_SIZE */
 	int			nlupgs; /* pages read in LU_PAGE_SIZE */
 	struct lmv_tgt_desc	*tgt;
 
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c
index 4a2baaff3dc1..b41b65e2f021 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-obdo.c
@@ -47,7 +47,6 @@
 #include "../../include/lustre/lustre_idl.h"
 
 #include <linux/fs.h>
-#include <linux/pagemap.h> /* for PAGE_CACHE_SIZE */
 
 void obdo_refresh_inode(struct inode *dst, struct obdo *src, u32 valid)
 {
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index 4e0a357ed43d..5f25bf83dcfc 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -1456,7 +1456,7 @@ static void osc_unreserve_grant(struct client_obd *cli,
  * used, we should return these grants to OST. There're two cases where grants
  * can be lost:
  * 1. truncate;
- * 2. blocksize at OST is less than PAGE_CACHE_SIZE and a partial page was
+ * 2. blocksize at OST is less than PAGE_SIZE and a partial page was
  *    written. In this case OST may use less chunks to serve this partial
  *    write. OSTs don't actually know the page size on the client side. so
  *    clients have to calculate lost grant by the blocksize on the OST.