search for: eiocbqueu

Adding linux-btrfs to Cc. Am Freitag, 27. Januar 2012 schrieb Jeff Moyer: > Hi, Hi, > As it stands, generic_file_aio_write will call into generic_write_sync > when -EIOCBQUEUED is returned from __generic_file_aio_write. > EIOCBQUEUED indicates that an I/O was submitted but NOT completed. > Thus, we will flush the disk cache, potentially before the write(s) > even make it to the disk! Up until now, this has been the best we > could do, as file systems didn...

...); - ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos); - trace_generic_file_aio_read_ret(ret); + ret = generic_file_read_iter(iocb, iter, iocb->ki_pos); + trace_generic_file_read_iter_ret(ret); /* buffered aio wouldn't have proper lock coverage today */ BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT)); - /* see ocfs2_file_aio_write */ + /* see ocfs2_file_write_iter */ if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) { rw_level = -1; have_alloc_sem = 0; @@ -2686,8 +2679,8 @@ const struct file_operations ocfs2_fops = { .fsync...

...- ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos); - trace_generic_file_aio_read_ret(ret); + ret = generic_file_read_iter(iocb, iter, iocb->ki_pos); + trace_generic_file_read_iter_ret(ret); /* buffered aio wouldn''t have proper lock coverage today */ BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT)); - /* see ocfs2_file_aio_write */ + /* see ocfs2_file_write_iter */ if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) { rw_level = -1; have_alloc_sem = 0; @@ -2700,8 +2693,8 @@ const struct file_operations ocfs2_fops = { .fsync...

...c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 06ccf6a..b2ca980 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2013,8 +2013,8 @@ out_dio: /* buffered aio wouldn't have proper lock coverage today */ BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT)); - if ((file->f_flags & O_DSYNC && !direct_io) || IS_SYNC(inode) || - (file->f_flags & O_DIRECT && has_refcount)) { + if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) || + ((file-&...

....ki_flags = IOCB_DIRECT; 167 168 if (write) 169 ret = call_write_iter(blk->backend, &req->iocb, 170 &req->i); 171 else 172 ret = call_read_iter(blk->backend, &req->iocb, 173 &req->i); 174 175 if (ret != -EIOCBQUEUED) 176 vhost_blk_iocb_complete(&req->iocb, ret, 0); 177 178 ret = 0; 179 goto out; 180 } 181 182 if (type == VIRTIO_BLK_T_GET_ID) { 183 char s[] = "vhost_blk"; 184 size_t len = min_t(size_t, req->in_iov[0].iov_len, 185 strlen(s...

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

...->iocb.ki_flags = IOCB_DIRECT; > + > + if (write) > + ret = call_write_iter(blk->backend, &req->iocb, > + &req->i); > + else > + ret = call_read_iter(blk->backend, &req->iocb, > + &req->i); > + > + if (ret != -EIOCBQUEUED) > + vhost_blk_iocb_complete(&req->iocb, ret, 0); > + > + ret = 0; > + goto out; > + } > + > + if (type == VIRTIO_BLK_T_GET_ID) { > + char s[] = "vhost_blk"; Isn't this supposed to return the serial #? > + size_t len = min_t(size_t, req->...

I'm running a bit late with the e-mail this time around, but I think that's ok since there really isn't any major new features here - the bulk of the Ocfs2 update is bug fixes, or cleanups. The same goes for configfs. The only two things that could be described as features would be: - Sunil has updated Ocfs2 to provide even more live cluster locking information via debugfs. - Joel

Hi all - The following 9 patches add more error handling to the btrfs code: - Add btrfs_panic - Catch locking failures in {set,clear}_extent_bit - Push up set_extent_bit errors to callers - Push up lock_extent errors to callers - Push up clear_extent_bit errors to callers - Push up unlock_extent errors to callers - Make pin_down_extent return void - Push up btrfs_pin_extent errors to

From: John Hubbard <jhubbard at nvidia.com> Hi, This is mostly Jerome's work, converting the block/bio and related areas to call put_user_page*() instead of put_page(). Because I've changed Jerome's patches, in some cases significantly, I'd like to get his feedback before we actually leave him listed as the author (he might want to disown some or all of these). I added a

From: John Hubbard <jhubbard at nvidia.com> Hi, This is mostly Jerome's work, converting the block/bio and related areas to call put_user_page*() instead of put_page(). Because I've changed Jerome's patches, in some cases significantly, I'd like to get his feedback before we actually leave him listed as the author (he might want to disown some or all of these). I added a

I''ve been working to try to improve the write-ahead log''s performance, and I found that the bottleneck addresses in the checksum items, especially when we want to make a random write on a large file, e.g a 4G file. Then a idea for this suggested by Chris is to use sub transaction ids and just to log the part of inode that had changed since either the last log commit or the last

Hi all - Here''s my current error handling patchset, against 3.1-rc8. Almost all of this patchset is preparing for actual error handling. Before we start in on that work, I''m trying to reduce the surface we need to worry about. It turns out that there is a ton of code that returns an error code but never actually reports an error. The patchset has grown to 65 patches. 46 of them