* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define module_init(a) late_initcall(a)
#endif
-#ifndef HAVE_TRYLOCK_PAGE
-#define trylock_page(page) (!TestSetPageLocked(page))
-#endif
-
#define LTIME_S(time) (time.tv_sec)
-#ifdef HAVE_EXPORT_INODE_PERMISSION
-#define ll_permission(inode,mask,nd) inode_permission(inode,mask)
-#else
-#define ll_permission(inode,mask,nd) permission(inode,mask,nd)
-#endif
-
#ifdef HAVE_GENERIC_PERMISSION_2ARGS
# define ll_generic_permission(inode, mask, flags, check_acl) \
generic_permission(inode, mask)
generic_permission(inode, mask, check_acl)
#endif
-#ifdef HAVE_BLKDEV_PUT_2ARGS
-#define ll_blkdev_put(a, b) blkdev_put(a, b)
-#else
-#define ll_blkdev_put(a, b) blkdev_put(a)
-#endif
-
-#ifdef HAVE_DENTRY_OPEN_4ARGS
-#define ll_dentry_open(a, b, c, d) dentry_open(a, b, c, d)
+#ifdef HAVE_DENTRY_OPEN_USE_PATH
+#define ll_dentry_open(a,b,c) dentry_open(a,b,c)
#else
-#define ll_dentry_open(a, b, c, d) dentry_open(a, b, c)
-#endif
-
-#ifdef HAVE_KIOBUF_KIO_BLOCKS
-#define KIOBUF_GET_BLOCKS(k) ((k)->kio_blocks)
-#else
-#define KIOBUF_GET_BLOCKS(k) ((k)->blocks)
+/*
+ * dentry_open handles its own reference counting since Linux v3.6
+ * (commit 765927b2). Callers should free their own references.
+ *
+ * Prior versions expected the caller to increment the references.
+ * The references are retained on success and freed on error.
+ */
+static inline struct file *ll_dentry_open(struct path *path, int flags,
+ const struct cred *cred)
+{
+ mntget(path->mnt);
+ dget(path->dentry);
+ return dentry_open(path->dentry, path->mnt, flags, cred);
+}
#endif
#ifdef HAVE_SECURITY_PLUG
#endif
-#ifndef container_of
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
+#if !defined(HAVE_FILE_LLSEEK_SIZE) || defined(HAVE_FILE_LLSEEK_SIZE_5ARGS)
+#define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
+ generic_file_llseek_size(file, offset, origin, maxbytes, eof);
+#else
+#define ll_generic_file_llseek_size(file, offset, origin, maxbytes, eof) \
+ generic_file_llseek_size(file, offset, origin, maxbytes);
#endif
#ifdef HAVE_INODE_DIO_WAIT
# define inode_dio_done(i) up_read(&(i)->i_alloc_sem)
#endif
-#include <linux/mpage.h> /* for generic_writepages */
-
-#ifdef HAVE_HIDE_VFSMOUNT_GUTS
-# include <../fs/mount.h>
-#else
-# define real_mount(mnt) (mnt)
-#endif
-
-static inline const char *mnt_get_devname(struct vfsmount *mnt)
-{
- return real_mount(mnt)->mnt_devname;
-}
-
-#ifndef HAVE_ATOMIC_MNT_COUNT
-static inline unsigned int mnt_get_count(struct vfsmount *mnt)
-{
-#ifdef CONFIG_SMP
- unsigned int count = 0;
- int cpu;
-
- for_each_possible_cpu(cpu) {
- count += per_cpu_ptr(real_mount(mnt)->mnt_pcp, cpu)->mnt_count;
- }
-
- return count;
-#else
- return real_mount(mnt)->mnt_count;
-#endif
-}
-#else
-# define mnt_get_count(mnt) cfs_atomic_read(&(real_mount(mnt)->mnt_count))
-#endif
-
#ifdef HAVE_RW_TREE_LOCK
#define TREE_READ_LOCK_IRQ(mapping) read_lock_irq(&(mapping)->tree_lock)
#define TREE_READ_UNLOCK_IRQ(mapping) read_unlock_irq(&(mapping)->tree_lock)
}
#endif
-#ifdef HAVE_INVALIDATE_BDEV_2ARG
-#define ll_invalidate_bdev(a,b) invalidate_bdev((a),(b))
-#else
-#define ll_invalidate_bdev(a,b) invalidate_bdev((a))
-#endif
-
#ifndef FS_HAS_FIEMAP
#define FS_HAS_FIEMAP (0)
#endif
#define FS_RENAME_DOES_D_MOVE FS_ODD_RENAME
#endif
-#ifndef HAVE_D_OBTAIN_ALIAS
-/* The old d_alloc_anon() didn't free the inode reference on error
- * like d_obtain_alias(). Hide that difference/inconvenience here. */
-static inline struct dentry *d_obtain_alias(struct inode *inode)
-{
- struct dentry *anon = d_alloc_anon(inode);
-
- if (anon == NULL) {
- iput(inode);
- anon = ERR_PTR(-ENOMEM);
- }
-
- return anon;
-}
-#endif
-
/* add a lustre compatible layer for crypto API */
#include <linux/crypto.h>
-#ifdef HAVE_ASYNC_BLOCK_CIPHER
#define ll_crypto_hash crypto_hash
#define ll_crypto_cipher crypto_blkcipher
#define ll_crypto_alloc_hash(name, type, mask) crypto_alloc_hash(name, type, mask)
#define ll_crypto_blkcipher_blocksize(tfm) crypto_blkcipher_blocksize(tfm)
#define ll_crypto_free_hash(tfm) crypto_free_hash(tfm)
#define ll_crypto_free_blkcipher(tfm) crypto_free_blkcipher(tfm)
-#else /* HAVE_ASYNC_BLOCK_CIPHER */
-#include <linux/scatterlist.h>
-#define ll_crypto_hash crypto_tfm
-#define ll_crypto_cipher crypto_tfm
-#ifndef HAVE_STRUCT_HASH_DESC
-struct hash_desc {
- struct ll_crypto_hash *tfm;
- u32 flags;
-};
-#endif
-#ifndef HAVE_STRUCT_BLKCIPHER_DESC
-struct blkcipher_desc {
- struct ll_crypto_cipher *tfm;
- void *info;
- u32 flags;
-};
-#endif
-#define ll_crypto_blkcipher_setkey(tfm, key, keylen) \
- crypto_cipher_setkey(tfm, key, keylen)
-#define ll_crypto_blkcipher_set_iv(tfm, src, len) \
- crypto_cipher_set_iv(tfm, src, len)
-#define ll_crypto_blkcipher_get_iv(tfm, dst, len) \
- crypto_cipher_get_iv(tfm, dst, len)
-#define ll_crypto_blkcipher_encrypt(desc, dst, src, bytes) \
- crypto_cipher_encrypt((desc)->tfm, dst, src, bytes)
-#define ll_crypto_blkcipher_decrypt(desc, dst, src, bytes) \
- crypto_cipher_decrypt((desc)->tfm, dst, src, bytes)
-#define ll_crypto_blkcipher_decrypt_iv(desc, dst, src, bytes) \
- crypto_cipher_decrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
-#define ll_crypto_blkcipher_encrypt_iv(desc, dst, src, bytes) \
- crypto_cipher_encrypt_iv((desc)->tfm, dst, src, bytes, (desc)->info)
-
-static inline
-struct ll_crypto_cipher *ll_crypto_alloc_blkcipher(const char * algname,
- u32 type, u32 mask)
-{
- struct ll_crypto_cipher *rtn;
- char buf[CRYPTO_MAX_ALG_NAME + 1];
- const char *pan = algname;
- u32 flag = 0;
-
- if (strncmp("cbc(", algname, 4) == 0)
- flag |= CRYPTO_TFM_MODE_CBC;
- else if (strncmp("ecb(", algname, 4) == 0)
- flag |= CRYPTO_TFM_MODE_ECB;
- if (flag) {
- char *vp = strnchr(algname, CRYPTO_MAX_ALG_NAME, ')');
- if (vp) {
- memcpy(buf, algname + 4, vp - algname - 4);
- buf[vp - algname - 4] = '\0';
- pan = buf;
- } else {
- flag = 0;
- }
- }
- rtn = crypto_alloc_tfm(pan, flag);
- return (rtn == NULL ? ERR_PTR(-ENOMEM) : rtn);
-}
-
-static inline
-struct ll_crypto_hash *ll_crypto_alloc_hash(const char *alg, u32 type, u32 mask)
-{
- char buf[CRYPTO_MAX_ALG_NAME + 1];
- const char *pan = alg;
-
- if (strncmp("hmac(", alg, 5) == 0) {
- char *vp = strnchr(alg, CRYPTO_MAX_ALG_NAME, ')');
- if (vp) {
- memcpy(buf, alg+ 5, vp - alg- 5);
- buf[vp - alg - 5] = 0x00;
- pan = buf;
- }
- }
- return crypto_alloc_tfm(pan, 0);
-}
-static inline int ll_crypto_hash_init(struct hash_desc *desc)
-{
- crypto_digest_init(desc->tfm); return 0;
-}
-static inline int ll_crypto_hash_update(struct hash_desc *desc,
- struct scatterlist *sg,
- unsigned int nbytes)
-{
- struct scatterlist *sl = sg;
- unsigned int count;
- /*
- * This way is very weakness. We must ensure that
- * the sum of sg[0..i]->length isn't greater than nbytes.
- * In the upstream kernel the crypto_hash_update() also
- * via the nbytes computed the count of sg[...].
- * The old style is more safely. but it gone.
- */
- for (count = 0; nbytes > 0; count ++, sl ++) {
- nbytes -= sl->length;
- }
- crypto_digest_update(desc->tfm, sg, count); return 0;
-}
-static inline int ll_crypto_hash_final(struct hash_desc *desc, u8 *out)
-{
- crypto_digest_final(desc->tfm, out); return 0;
-}
-static inline int ll_crypto_hmac(struct crypto_tfm *tfm,
- u8 *key, unsigned int *keylen,
- struct scatterlist *sg,
- unsigned int nbytes,
- u8 *out)
-{
- struct scatterlist *sl = sg;
- int count;
- for (count = 0; nbytes > 0; count ++, sl ++) {
- nbytes -= sl->length;
- }
- crypto_hmac(tfm, key, keylen, sg, count, out);
- return 0;
-}
-
-#define ll_crypto_hash_setkey(tfm, key, keylen) crypto_digest_setkey(tfm, key, keylen)
-#define ll_crypto_blkcipher_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
-#define ll_crypto_blkcipher_ivsize(tfm) crypto_tfm_alg_ivsize(tfm)
-#define ll_crypto_hash_digestsize(tfm) crypto_tfm_alg_digestsize(tfm)
-#define ll_crypto_hash_blocksize(tfm) crypto_tfm_alg_blocksize(tfm)
-#define ll_crypto_free_hash(tfm) crypto_free_tfm(tfm)
-#define ll_crypto_free_blkcipher(tfm) crypto_free_tfm(tfm)
-#define ll_crypto_tfm_alg_min_keysize crypto_tfm_alg_min_keysize
-#define ll_crypto_tfm_alg_max_keysize crypto_tfm_alg_max_keysize
-#endif /* HAVE_ASYNC_BLOCK_CIPHER */
#ifdef HAVE_SECURITY_PLUG
#define ll_vfs_rmdir(dir,entry,mnt) vfs_rmdir(dir,entry,mnt)
#define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry,mnt)
#define ll_vfs_mknod(dir,entry,mnt,mode,dev) \
vfs_mknod(dir,entry,mnt,mode,dev)
-#define ll_security_inode_unlink(dir,entry,mnt) \
- security_inode_unlink(dir,entry,mnt)
#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
vfs_rename(old,old_dir,mnt,new,new_dir,mnt1)
#else
#define ll_vfs_link(old,mnt,dir,new,mnt1) vfs_link(old,dir,new)
#define ll_vfs_unlink(inode,entry,mnt) vfs_unlink(inode,entry)
#define ll_vfs_mknod(dir,entry,mnt,mode,dev) vfs_mknod(dir,entry,mode,dev)
-#define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
vfs_rename(old,old_dir,new,new_dir)
#endif /* HAVE_SECURITY_PLUG */
#define SLAB_DESTROY_BY_RCU 0
#endif
-#ifndef HAVE_SB_HAS_QUOTA_ACTIVE
-#define sb_has_quota_active(sb, type) sb_has_quota_enabled(sb, type)
-#endif
-
-#ifndef HAVE_SB_ANY_QUOTA_LOADED
-# ifdef HAVE_SB_ANY_QUOTA_ACTIVE
-# define sb_any_quota_loaded(sb) sb_any_quota_active(sb)
-# else
-# define sb_any_quota_loaded(sb) sb_any_quota_enabled(sb)
-# endif
-#endif
-
static inline int
ll_quota_on(struct super_block *sb, int off, int ver, char *name, int remount)
{
return -ENOSYS;
}
-#ifndef HAVE_BLK_QUEUE_LOG_BLK_SIZE /* added in 2.6.31 */
-#define blk_queue_logical_block_size(q, sz) blk_queue_hardsect_size(q, sz)
-#endif
-
-#ifndef HAVE_VFS_DQ_OFF
-# define ll_vfs_dq_init DQUOT_INIT
-# define ll_vfs_dq_drop DQUOT_DROP
-# define ll_vfs_dq_transfer DQUOT_TRANSFER
-# define ll_vfs_dq_off(sb, remount) DQUOT_OFF(sb)
-#else
+#ifndef HAVE_DQUOT_SUSPEND
# define ll_vfs_dq_init vfs_dq_init
# define ll_vfs_dq_drop vfs_dq_drop
# define ll_vfs_dq_transfer vfs_dq_transfer
# define ll_vfs_dq_off(sb, remount) vfs_dq_off(sb, remount)
-#endif
-
-#ifdef HAVE_BDI_INIT
-#define ll_bdi_init(bdi) bdi_init(bdi)
-#define ll_bdi_destroy(bdi) bdi_destroy(bdi)
#else
-#define ll_bdi_init(bdi) 0
-#define ll_bdi_destroy(bdi) do { } while(0)
-#endif
-
-#ifdef HAVE_NEW_BACKING_DEV_INFO
-# define ll_bdi_wb_cnt(bdi) ((bdi).wb_cnt)
-#else
-# define ll_bdi_wb_cnt(bdi) 1
-#endif
-
-#ifdef HAVE_BLK_QUEUE_MAX_SECTORS /* removed in rhel6 */
-#define blk_queue_max_hw_sectors(q, sect) blk_queue_max_sectors(q, sect)
+# define ll_vfs_dq_init dquot_initialize
+# define ll_vfs_dq_drop dquot_drop
+# define ll_vfs_dq_transfer dquot_transfer
+# define ll_vfs_dq_off(sb, remount) dquot_suspend(sb, -1)
#endif
#ifndef HAVE_BLKDEV_GET_BY_DEV
# define blkdev_get_by_dev(dev, mode, holder) open_by_devnum(dev, mode)
#endif
-#ifndef HAVE_REQUEST_QUEUE_LIMITS
-#define queue_max_sectors(rq) ((rq)->max_sectors)
-#define queue_max_hw_sectors(rq) ((rq)->max_hw_sectors)
-#define queue_max_phys_segments(rq) ((rq)->max_phys_segments)
-#define queue_max_hw_segments(rq) ((rq)->max_hw_segments)
-#endif
-
#ifndef HAVE_BLK_QUEUE_MAX_SEGMENTS
#define blk_queue_max_segments(rq, seg) \
do { blk_queue_max_phys_segments(rq, seg); \
#define queue_max_hw_segments(rq) queue_max_segments(rq)
#endif
-
-#ifndef HAVE_BI_HW_SEGMENTS
-#define bio_hw_segments(q, bio) 0
+#ifdef HAVE_KMAP_ATOMIC_HAS_1ARG
+#define ll_kmap_atomic(a, b) kmap_atomic(a)
+#define ll_kunmap_atomic(a, b) kunmap_atomic(a)
+#else
+#define ll_kmap_atomic(a, b) kmap_atomic(a, b)
+#define ll_kunmap_atomic(a, b) kunmap_atomic(a, b)
#endif
-#ifndef HAVE_PAGEVEC_LRU_ADD_FILE
-#define pagevec_lru_add_file pagevec_lru_add
+#ifndef HAVE_CLEAR_INODE
+#define clear_inode(i) end_writeback(i)
#endif
-#ifdef HAVE_ADD_TO_PAGE_CACHE_LRU
-#define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
- add_to_page_cache_lru(pg, mapping, off, gfp)
-#define ll_pagevec_init(pv, cold) do {} while (0)
-#define ll_pagevec_add(pv, pg) (0)
-#define ll_pagevec_lru_add_file(pv) do {} while (0)
+#ifdef HAVE_DENTRY_D_ALIAS_HLIST
+#define ll_d_hlist_node hlist_node
+#define ll_d_hlist_empty(list) hlist_empty(list)
+#define ll_d_hlist_entry(ptr, type, name) hlist_entry(ptr.first, type, name)
+#define ll_d_hlist_for_each(tmp, i_dentry) hlist_for_each(tmp, i_dentry)
+#ifdef HAVE_HLIST_FOR_EACH_3ARG
+#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
+ p = NULL; hlist_for_each_entry(dentry, i_dentry, alias)
+#else
+#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
+ hlist_for_each_entry(dentry, p, i_dentry, alias)
+#endif
+#define DECLARE_LL_D_HLIST_NODE_PTR(name) struct ll_d_hlist_node *name
#else
-#define ll_add_to_page_cache_lru(pg, mapping, off, gfp) \
- add_to_page_cache(pg, mapping, off, gfp)
-#define ll_pagevec_init(pv, cold) pagevec_init(&lru_pvec, cold);
-#define ll_pagevec_add(pv, pg) \
-({ \
- int __ret; \
- \
- page_cache_get(pg); \
- __ret = pagevec_add(pv, pg); \
-})
-#define ll_pagevec_lru_add_file(pv) pagevec_lru_add_file(pv)
+#define ll_d_hlist_node list_head
+#define ll_d_hlist_empty(list) list_empty(list)
+#define ll_d_hlist_entry(ptr, type, name) list_entry(ptr.next, type, name)
+#define ll_d_hlist_for_each(tmp, i_dentry) list_for_each(tmp, i_dentry)
+#define ll_d_hlist_for_each_entry(dentry, p, i_dentry, alias) \
+ list_for_each_entry(dentry, i_dentry, alias)
+#define DECLARE_LL_D_HLIST_NODE_PTR(name) /* nothing */
#endif
-#if !defined(HAVE_NODE_TO_CPUMASK) && defined(HAVE_CPUMASK_OF_NODE)
-#define node_to_cpumask(i) (*(cpumask_of_node(i)))
-#define HAVE_NODE_TO_CPUMASK
+
+#ifndef HAVE_BI_HW_SEGMENTS
+#define bio_hw_segments(q, bio) 0
#endif
#ifndef QUOTA_OK
# define NO_QUOTA (-EDQUOT)
#endif
+#ifndef SEEK_DATA
+#define SEEK_DATA 3 /* seek to the next data */
+#endif
+#ifndef SEEK_HOLE
+#define SEEK_HOLE 4 /* seek to the next hole */
+#endif
+
+#ifndef FMODE_UNSIGNED_OFFSET
+#define FMODE_UNSIGNED_OFFSET ((__force fmode_t)0x2000)
+#endif
+
#if !defined(_ASM_GENERIC_BITOPS_EXT2_NON_ATOMIC_H_) && !defined(ext2_set_bit)
# define ext2_set_bit __test_and_set_bit_le
# define ext2_clear_bit __test_and_clear_bit_le
# define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET)
#endif
-#ifndef HAVE_SELINUX_IS_ENABLED
-static inline bool selinux_is_enabled(void)
-{
- return 0;
-}
-#endif
-
#ifndef HAVE_LM_XXX_LOCK_MANAGER_OPS
# define lm_compare_owner fl_compare_owner
#endif
}
#endif
+#ifdef HAVE_INODEOPS_USE_UMODE_T
+# define ll_umode_t umode_t
+#else
+# define ll_umode_t int
+#endif
+
+#include <linux/dcache.h>
+#ifndef HAVE_D_MAKE_ROOT
+static inline struct dentry *d_make_root(struct inode *root)
+{
+ struct dentry *res = d_alloc_root(root);
+
+ if (res == NULL && root)
+ iput(root);
+
+ return res;
+}
+#endif
+
+#ifdef HAVE_DIRTY_INODE_HAS_FLAG
+# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode), flag)
+#else
+# define ll_dirty_inode(inode, flag) (inode)->i_sb->s_op->dirty_inode((inode))
+#endif
+
#endif /* _COMPAT25_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff