diff options
83 files changed, 994 insertions, 1064 deletions
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst index e664061ed55d..f5e3676db954 100644 --- a/Documentation/filesystems/locking.rst +++ b/Documentation/filesystems/locking.rst @@ -251,10 +251,10 @@ prototypes:: void (*readahead)(struct readahead_control *); int (*write_begin)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata); + struct folio **foliop, void **fsdata); int (*write_end)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata); + struct folio *folio, void *fsdata); sector_t (*bmap)(struct address_space *, sector_t); void (*invalidate_folio) (struct folio *, size_t start, size_t len); bool (*release_folio)(struct folio *, gfp_t); @@ -280,7 +280,7 @@ read_folio: yes, unlocks shared writepages: dirty_folio: maybe readahead: yes, unlocks shared -write_begin: locks the page exclusive +write_begin: locks the folio exclusive write_end: yes, unlocks exclusive bmap: invalidate_folio: yes exclusive diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst index 6e903a903f8f..4f67b5ea0568 100644 --- a/Documentation/filesystems/vfs.rst +++ b/Documentation/filesystems/vfs.rst @@ -810,7 +810,7 @@ cache in your filesystem. The following members are defined: struct page **pagep, void **fsdata); int (*write_end)(struct file *, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata); + struct folio *folio, void *fsdata); sector_t (*bmap)(struct address_space *, sector_t); void (*invalidate_folio) (struct folio *, size_t start, size_t len); bool (*release_folio)(struct folio *, gfp_t); @@ -926,12 +926,12 @@ cache in your filesystem. The following members are defined: (if they haven't been read already) so that the updated blocks can be written out properly. - The filesystem must return the locked pagecache page for the - specified offset, in ``*pagep``, for the caller to write into. + The filesystem must return the locked pagecache folio for the + specified offset, in ``*foliop``, for the caller to write into. It must be able to cope with short writes (where the length passed to write_begin is greater than the number of bytes copied - into the page). + into the folio). A void * may be returned in fsdata, which then gets passed into write_end. @@ -944,8 +944,8 @@ cache in your filesystem. The following members are defined: called. len is the original len passed to write_begin, and copied is the amount that was able to be copied. - The filesystem must take care of unlocking the page and - releasing it refcount, and updating i_size. + The filesystem must take care of unlocking the folio, + decrementing its refcount, and updating i_size. Returns < 0 on failure, otherwise the number of bytes (<= 'copied') that were able to be copied into pagecache. diff --git a/block/fops.c b/block/fops.c index 9825c1713a49..dacbd61fda29 100644 --- a/block/fops.c +++ b/block/fops.c @@ -451,20 +451,20 @@ static void blkdev_readahead(struct readahead_control *rac) } static int blkdev_write_begin(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, struct page **pagep, void **fsdata) + loff_t pos, unsigned len, struct folio **foliop, void **fsdata) { - return block_write_begin(mapping, pos, len, pagep, blkdev_get_block); + return block_write_begin(mapping, pos, len, foliop, blkdev_get_block); } static int blkdev_write_end(struct file *file, struct address_space *mapping, - loff_t pos, unsigned len, unsigned copied, struct page *page, + loff_t pos, unsigned len, unsigned copied, struct folio *folio, void *fsdata) { int ret; - ret = block_write_end(file, mapping, pos, len, copied, page, fsdata); + ret = block_write_end(file, mapping, pos, len, copied, folio, fsdata); - unlock_page(page); - put_page(page); + folio_unlock(folio); + folio_put(folio); return ret; } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c index c5e1c718a6d2..fe69f2c8527d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c @@ -424,7 +424,8 @@ shmem_pwrite(struct drm_i915_gem_object *obj, struct address_space *mapping = obj->base.filp->f_mapping; const struct address_space_operations *aops = mapping->a_ops; char __user *user_data = u64_to_user_ptr(arg->data_ptr); - u64 remain, offset; + u64 remain; + loff_t pos; unsigned int pg; /* Caller already validated user args */ @@ -457,12 +458,12 @@ shmem_pwrite(struct drm_i915_gem_object *obj, */ remain = arg->size; - offset = arg->offset; - pg = offset_in_page(offset); + pos = arg->offset; + pg = offset_in_page(pos); do { unsigned int len, unwritten; - struct page *page; + struct folio *folio; void *data, *vaddr; int err; char __maybe_unused c; @@ -480,21 +481,19 @@ shmem_pwrite(struct drm_i915_gem_object *obj, if (err) return err; - err = aops->write_begin(obj->base.filp, mapping, offset, len, - &page, &data); + err = aops->write_begin(obj->base.filp, mapping, pos, len, + &folio, &data); if (err < 0) return err; - vaddr = kmap_local_page(page); + vaddr = kmap_local_folio(folio, offset_in_folio(folio, pos)); pagefault_disable(); - unwritten = __copy_from_user_inatomic(vaddr + pg, - user_data, - len); + unwritten = __copy_from_user_inatomic(vaddr, user_data, len); pagefault_enable(); kunmap_local(vaddr); - err = aops->write_end(obj->base.filp, mapping, offset, len, - len - unwritten, page, data); + err = aops->write_end(obj->base.filp, mapping, pos, len, + len - unwritten, folio, data); if (err < 0) return err; @@ -504,7 +503,7 @@ shmem_pwrite(struct drm_i915_gem_object *obj, remain -= len; user_data += len; - offset += len; + pos += len; pg = 0; } while (remain); @@ -660,7 +659,7 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *i915, struct drm_i915_gem_object *obj; struct file *file; const struct address_space_operations *aops; - resource_size_t offset; + loff_t pos; int err; GEM_WARN_ON(IS_DGFX(i915)); @@ -672,29 +671,27 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *i915, file = obj->base.filp; aops = file->f_mapping->a_ops; - offset = 0; + pos = 0; do { unsigned int len = min_t(typeof(size), size, PAGE_SIZE); - struct page *page; - void *pgdata, *vaddr; + struct folio *folio; + void *fsdata; - err = aops->write_begin(file, file->f_mapping, offset, len, - &page, &pgdata); + err = aops->write_begin(file, file->f_mapping, pos, len, + &folio, &fsdata); if (err < 0) goto fail; - vaddr = kmap(page); - memcpy(vaddr, data, len); - kunmap(page); + memcpy_to_folio(folio, offset_in_folio(folio, pos), data, len); - err = aops->write_end(file, file->f_mapping, offset, len, len, - page, pgdata); + err = aops->write_end(file, file->f_mapping, pos, len, len, + folio, fsdata); if (err < 0) goto fail; size -= len; data += len; - offset += len; + pos += len; } while (size); return obj; diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index a183e213a4a5..21527189e430 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c @@ -55,12 +55,11 @@ static void adfs_write_failed(struct address_space *mapping, loff_t to) static int adfs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { int ret; - *pagep = NULL; - ret = cont_write_begin(file, mapping, pos, len, pagep, fsdata, + ret = cont_write_begin(file, mapping, pos, len, foliop, fsdata, adfs_get_block, &ADFS_I(mapping->host)->mmu_private); if (unlikely(ret)) diff --git a/fs/affs/file.c b/fs/affs/file.c index 04c018e19602..a5a861dd5223 100644 --- a/fs/affs/file.c +++ b/fs/affs/file.c @@ -417,12 +417,11 @@ affs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) static int affs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { int ret; - *pagep = NULL; - ret = cont_write_begin(file, mapping, pos, len, pagep, fsdata, + ret = cont_write_begin(file, mapping, pos, len, foliop, fsdata, affs_get_block, &AFFS_I(mapping->host)->mmu_private); if (unlikely(ret)) @@ -433,12 +432,12 @@ static int affs_write_begin(struct file *file, struct address_space *mapping, static int affs_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned int len, unsigned int copied, - struct page *page, void *fsdata) + struct folio *folio, void *fsdata) { struct inode *inode = mapping->host; int ret; - ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata); + ret = generic_write_end(file, mapping, pos, len, copied, folio, fsdata); /* Clear Archived bit on file writes, as AmigaOS would do */ if (AFFS_I(inode)->i_protect & FIBF_ARCHIVED) { @@ -648,7 +647,7 @@ static int affs_read_folio_ofs(struct file *file, struct folio *folio) static int affs_write_begin_ofs(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { struct inode *inode = mapping->host; struct folio *folio; @@ -671,7 +670,7 @@ static int affs_write_begin_ofs(struct file *file, struct address_space *mapping mapping_gfp_mask(mapping)); if (IS_ERR(folio)) return PTR_ERR(folio); - *pagep = &folio->page; + *foliop = folio; if (folio_test_uptodate(folio)) return 0; @@ -687,9 +686,8 @@ static int affs_write_begin_ofs(struct file *file, struct address_space *mapping static int affs_write_end_ofs(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata) + struct folio *folio, void *fsdata) { - struct folio *folio = page_folio(page); struct inode *inode = mapping->host; struct super_block *sb = inode->i_sb; struct buffer_head *bh, *prev_bh; @@ -882,14 +880,14 @@ affs_truncate(struct inode *inode) if (inode->i_size > AFFS_I(inode)->mmu_private) { struct address_space *mapping = inode->i_mapping; - struct page *page; + struct folio *folio; void *fsdata = NULL; loff_t isize = inode->i_size; int res; - res = mapping->a_ops->write_begin(NULL, mapping, isize, 0, &page, &fsdata); + res = mapping->a_ops->write_begin(NULL, mapping, isize, 0, &folio, &fsdata); if (!res) - res = mapping->a_ops->write_end(NULL, mapping, isize, 0, 0, page, fsdata); + res = mapping->a_ops->write_end(NULL, mapping, isize, 0, 0, folio, fsdata); else inode->i_size = AFFS_I(inode)->mmu_private; mark_inode_dirty(inode); diff --git a/fs/bcachefs/fs-io-buffered.c b/fs/bcachefs/fs-io-buffered.c index ec8c427bf588..ff60c041abe5 100644 --- a/fs/bcachefs/fs-io-buffered.c +++ b/fs/bcachefs/fs-io-buffered.c @@ -659,7 +659,7 @@ int bch2_writepages(struct address_space *mapping, struct writeback_control *wbc int bch2_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { struct bch_inode_info *inode = to_bch_ei(mapping->host); struct bch_fs *c = inode->v.i_sb->s_fs_info; @@ -728,12 +728,11 @@ out: goto err; } - *pagep = &folio->page; + *foliop = folio; return 0; err: folio_unlock(folio); folio_put(folio); - *pagep = NULL; err_unlock: bch2_pagecache_add_put(inode); kfree(res); @@ -743,12 +742,11 @@ err_unlock: int bch2_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata) + struct folio *folio, void *fsdata) { struct bch_inode_info *inode = to_bch_ei(mapping->host); struct bch_fs *c = inode->v.i_sb->s_fs_info; struct bch2_folio_reservation *res = fsdata; - struct folio *folio = page_folio(page); unsigned offset = pos - folio_pos(folio); lockdep_assert_held(&inode->v.i_rwsem); diff --git a/fs/bcachefs/fs-io-buffered.h b/fs/bcachefs/fs-io-buffered.h index a6126ff790e6..3207ebbb4ab4 100644 --- a/fs/bcachefs/fs-io-buffered.h +++ b/fs/bcachefs/fs-io-buffered.h @@ -10,10 +10,10 @@ int bch2_read_folio(struct file *, struct folio *); int bch2_writepages(struct address_space *, struct writeback_control *); void bch2_readahead(struct readahead_control *); -int bch2_write_begin(struct file *, struct address_space *, loff_t, - unsigned, struct page **, void **); +int bch2_write_begin(struct file *, struct address_space *, loff_t pos, + unsigned len, struct folio **, void **); int bch2_write_end(struct file *, struct address_space *, loff_t, - unsigned, unsigned, struct page *, void *); + unsigned len, unsigned copied, struct folio *, void *); ssize_t bch2_write_iter(struct kiocb *, struct iov_iter *); diff --git a/fs/bfs/file.c b/fs/bfs/file.c index a778411574a9..fa66a09e496a 100644 --- a/fs/bfs/file.c +++ b/fs/bfs/file.c @@ -172,11 +172,11 @@ static void bfs_write_failed(struct address_space *mapping, loff_t to) static int bfs_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, - struct page **pagep, void **fsdata) + struct folio **foliop, void **fsdata) { int ret; - ret = block_write_begin(mapping, pos, len, pagep, bfs_get_block); + ret = block_write_begin(mapping, pos, len, foliop, bfs_get_block); if (unlikely(ret)) bfs_write_failed(mapping, pos + len); diff --git a/fs/buffer.c b/fs/buffer.c index 74f4eb5c7087..1fc9a50def0b 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2164,11 +2164,10 @@ int __block_write_begin_int(struct folio *folio, loff_t pos, unsigned len, return err; } -int __block_write_begin(struct page *page, loff_t pos, unsigned len, +int __block_write_begin(struct folio *folio, loff_t pos, u |