Displaying 7 results from an estimated 7 matches for "btrfs_direct_io".
2009 Aug 24
2
[RFC] Early look at btrfs directIO read code
...he.o zlib.o \
- compression.o delayed-ref.o relocation.o
+ compression.o delayed-ref.o relocation.o dio.o
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 272b9b2..835bde3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4308,12 +4308,9 @@ out:
return em;
}
-static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
+extern ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
const struct iovec *iov, loff_t offset,
- unsigned long nr_segs)
-{
- return -EINVAL;
-}
+ unsigned long nr_segs);
static int btrfs_fiemap(struct inode *inode, struct fiemap_extent_info
*fieinfo,...
2013 Jan 31
4
[RFC][PATCH 2/2] Btrfs: implement unlocked dio write
...ie <miaox@cn.fujitsu.com>
---
fs/btrfs/inode.c | 24 +++++++++++++-----------
1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d17a04b..091593a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6589,31 +6589,33 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
int flags = 0;
- bool wakeup = false;
+ bool wakeup = true;
int ret;
if (check_direct_IO(BTRFS_I(inode)->root, rw, iocb, iov,
offset, nr_segs))
return 0;...
2011 Aug 15
9
[patch v2 0/9] btrfs: More error handling patches
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
2013 Oct 25
0
[PATCH] Btrfs: return an error from btrfs_wait_ordered_range
...RTY | EXTENT_DELALLOC, 0, 0, NULL,
+ GFP_NOFS);
+ goto out;
+ }
key.objectid = BTRFS_FREE_SPACE_OBJECTID;
key.offset = offset;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ef08cbd..961ae6f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7254,7 +7254,9 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
* outstanding dirty pages are on disk.
*/
count = iov_length(iov, nr_segs);
- btrfs_wait_ordered_range(inode, offset, count);
+ ret = btrfs_wait_ordered_range(inode, offset, count);
+ if (ret)
+ return ret;
if (rw & WRITE) {
/*
@@ -7595,7 +7597,10 @@...
2010 Nov 02
2
[RFC][PATCH] direct-io: btrfs: avoid splitting dio requests for non-btrfs filesystems
...++ b/fs/btrfs/inode.c
@@ -37,6 +37,7 @@
#include <linux/posix_acl.h>
#include <linux/falloc.h>
#include <linux/slab.h>
+#include <linux/aio.h>
#include "compat.h"
#include "ctree.h"
#include "disk-io.h"
@@ -5822,6 +5823,9 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
free_extent_state(cached_state);
cached_state = NULL;
+ /* btrfs cannot handle logically non-contiguous requests */
+ kiocb_set_separate_meta_reads(iocb);
+
ret = __blockdev_direct_IO(rw, iocb, inode,
BTRFS_I(inode)->root->fs_info->fs_devices->l...
2011 Oct 04
68
[patch 00/65] Error handling patchset v3
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
2010 May 07
6
[PATCH 1/5] fs: allow short direct-io reads to be completed via buffered IO V2
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