search for: get_block_t

...+++++++----- include/linux/fs.h | 11 ++++++++--- 2 files changed, 36 insertions(+), 8 deletions(-) diff --git a/fs/direct-io.c b/fs/direct-io.c index e82adc2..21ec032 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -82,6 +82,8 @@ struct dio { int reap_counter; /* rate limit reaping */ get_block_t *get_block; /* block mapping function */ dio_iodone_t *end_io; /* IO completion function */ + dio_submit_t *submit_io; /* IO submition function */ + loff_t logical_offset_in_bio; /* current first logical block in bio */ sector_t final_block_in_bio; /* current final block in bio + 1 */ secto...

...b/include/linux/buffer_head.h > index 1520793c72da..873653d2f1aa 100644 > --- a/include/linux/buffer_head.h > +++ b/include/linux/buffer_head.h > @@ -284,7 +284,7 @@ int cont_write_begin(struct file *, struct address_space *, loff_t, > unsigned, struct page **, void **, > get_block_t *, loff_t *); > int generic_cont_expand_simple(struct inode *inode, loff_t size); > -int block_commit_write(struct page *page, unsigned from, unsigned to); > +void block_commit_write(struct page *page, unsigned int from, unsigned int to); > int block_page_mkwrite(struct vm_area_struct...

...e(page, 0, end); out_dirty: set_page_dirty(page); wait_for_stable_page(page); --- a/include/linux/buffer_head.h~fs-convert-block_commit_write-to-return-void +++ a/include/linux/buffer_head.h @@ -288,7 +288,7 @@ int cont_write_begin(struct file *, stru unsigned, struct page **, void **, get_block_t *, loff_t *); int generic_cont_expand_simple(struct inode *inode, loff_t size); -int block_commit_write(struct page *page, unsigned from, unsigned to); +void block_commit_write(struct page *page, unsigned int from, unsigned int to); int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fau...

Changelog: v1--v2: 1. Re-order patches to avoid breaking compilation. Bean Huo (5): fs/buffer: clean up block_commit_write ext4: No need to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c: convert block_commit_write to return void fs/buffer.c

*** BLURB HERE *** Bean Huo (5): fs/buffer: clean up block_commit_write fs/buffer.c: convert block_commit_write to return void ext4: No need to check return value of block_commit_write() fs/ocfs2: No need to check return value of block_commit_write() udf: No need to check return value of block_commit_write() fs/buffer.c | 24 +++++++-----------------

V1->V2: Check to see if our current ppos is >= i_size after a short DIO read, just in case it was actually a short read and we need to just return. This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or

...; /* * Update file times before taking page lock. We may end up failing the diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b3a5213..efc47f6 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5023,7 +5023,9 @@ int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) get_block_t *get_block; int retries = 0; - sb_start_pagefault(inode->i_sb); + ret = sb_start_pagefault(inode->i_sb); + if (ret) + return VM_FAULT_RETRY; file_update_time(vma->vm_file); /* Delalloc case is easy... */ if (test_opt(inode->i_sb, DELALLOC) && diff --git a/fs/f2fs/file...

i_alloc_sem has always been a bit of an odd "lock". It''s the only remaining rw_semaphore that can be released by a different thread than the one that locked it, and it''s use case in the core direct I/O code is more like a counter given that the writers already have external serialization. This series removes it in favour of a simpler counter scheme, thus getting rid

...sector_t final_block_in_request;/* doesn''t change */ unsigned first_block_in_page; /* doesn''t change, Used only once */ int boundary; /* prev block is at a boundary */ + int separate_meta_reads; /* separate in I/O submission */ int reap_counter; /* rate limit reaping */ get_block_t *get_block; /* block mapping function */ dio_iodone_t *end_io; /* IO completion function */ @@ -659,7 +661,7 @@ static int dio_send_cur_page(struct dio *dio) * Submit now if the underlying fs is about to perform a * metadata read */ - else if (dio->boundary) + else if (dio->...