From: Omar Sandoval <osandov@osandov.com>
To: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
Al Viro <viro@zeniv.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-api@vger.kernel.org, kernel-team@fb.com
Subject: [PATCH RESEND x3 v9 9/9] btrfs: implement RWF_ENCODED writes
Date: Thu, 17 Jun 2021 16:51:32 -0700 [thread overview]
Message-ID: <aa6d96647502062f91f785d9c0a2e11ee28f1f6a.1623972519.git.osandov@fb.com> (raw)
In-Reply-To: <cover.1623972518.git.osandov@fb.com>
From: Omar Sandoval <osandov@fb.com>
The implementation resembles direct I/O: we have to flush any ordered
extents, invalidate the page cache, and do the io tree/delalloc/extent
map/ordered extent dance. From there, we can reuse the compression code
with a minor modification to distinguish the write from writeback. This
also creates inline extents when possible.
Now that read and write are implemented, this also sets the
FMODE_ENCODED_IO flag in btrfs_file_open().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
---
fs/btrfs/compression.c | 7 +-
fs/btrfs/compression.h | 6 +-
fs/btrfs/ctree.h | 2 +
fs/btrfs/file.c | 38 +++++-
fs/btrfs/inode.c | 256 +++++++++++++++++++++++++++++++++++++++-
fs/btrfs/ordered-data.c | 12 +-
fs/btrfs/ordered-data.h | 5 +-
7 files changed, 313 insertions(+), 13 deletions(-)
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 59733573ed08..e8146012d84b 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -354,7 +354,8 @@ static void end_compressed_bio_write(struct bio *bio)
cb->start, cb->start + cb->len - 1,
bio->bi_status == BLK_STS_OK);
- end_compressed_writeback(inode, cb);
+ if (cb->writeback)
+ end_compressed_writeback(inode, cb);
/* note, our inode could be gone now */
/*
@@ -390,7 +391,8 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
struct page **compressed_pages,
unsigned int nr_pages,
unsigned int write_flags,
- struct cgroup_subsys_state *blkcg_css)
+ struct cgroup_subsys_state *blkcg_css,
+ bool writeback)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct bio *bio = NULL;
@@ -416,6 +418,7 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
cb->mirror_num = 0;
cb->compressed_pages = compressed_pages;
cb->compressed_len = compressed_len;
+ cb->writeback = writeback;
cb->orig_bio = NULL;
cb->nr_pages = nr_pages;
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index c359f20920d0..86b70e320813 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -52,6 +52,9 @@ struct compressed_bio {
/* The compression algorithm for this bio */
u8 compress_type;
+ /* Whether this is a write for writeback. */
+ bool writeback;
+
/* IO errors */
u8 errors;
int mirror_num;
@@ -96,7 +99,8 @@ blk_status_t btrfs_submit_compressed_write(struct btrfs_inode *inode, u64 start,
struct page **compressed_pages,
unsigned int nr_pages,
unsigned int write_flags,
- struct cgroup_subsys_state *blkcg_css);
+ struct cgroup_subsys_state *blkcg_css,
+ bool writeback);
blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
int mirror_num, unsigned long bio_flags);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index cd31dbc2e4a4..2a435c9adaec 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3202,6 +3202,8 @@ void btrfs_writepage_endio_finish_ordered(struct btrfs_inode *inode,
struct page *page, u64 start,
u64 end, int uptodate);
ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter);
+ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from,
+ struct encoded_iov *encoded);
extern const struct dentry_operations btrfs_dentry_operations;
extern const struct iomap_ops btrfs_dio_iomap_ops;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 89b3dd3fa9e4..deaa14a08711 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -3,6 +3,7 @@
* Copyright (C) 2007 Oracle. All rights reserved.
*/
+#include <linux/encoded_io.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
#include <linux/time.h>
@@ -1990,6 +1991,32 @@ static ssize_t btrfs_direct_write(struct kiocb *iocb, struct iov_iter *from)
return written ? written : err;
}
+static ssize_t btrfs_encoded_write(struct kiocb *iocb, struct iov_iter *from)
+{
+ struct file *file = iocb->ki_filp;
+ struct inode *inode = file_inode(file);
+ struct encoded_iov encoded;
+ ssize_t ret;
+
+ ret = copy_encoded_iov_from_iter(&encoded, from);
+ if (ret)
+ return ret;
+
+ btrfs_inode_lock(inode, 0);
+ ret = generic_encoded_write_checks(iocb, &encoded);
+ if (ret || encoded.len == 0)
+ goto out;
+
+ ret = btrfs_write_check(iocb, from, encoded.len);
+ if (ret < 0)
+ goto out;
+
+ ret = btrfs_do_encoded_write(iocb, from, &encoded);
+out:
+ btrfs_inode_unlock(inode, 0);
+ return ret;
+}
+
static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
struct iov_iter *from)
{
@@ -2006,14 +2033,17 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
if (test_bit(BTRFS_FS_STATE_ERROR, &inode->root->fs_info->fs_state))
return -EROFS;
- if (!(iocb->ki_flags & IOCB_DIRECT) &&
- (iocb->ki_flags & IOCB_NOWAIT))
+ if ((iocb->ki_flags & IOCB_NOWAIT) &&
+ (!(iocb->ki_flags & IOCB_DIRECT) ||
+ (iocb->ki_flags & IOCB_ENCODED)))
return -EOPNOTSUPP;
if (sync)
atomic_inc(&inode->sync_writers);
- if (iocb->ki_flags & IOCB_DIRECT)
+ if (iocb->ki_flags & IOCB_ENCODED)
+ num_written = btrfs_encoded_write(iocb, from);
+ else if (iocb->ki_flags & IOCB_DIRECT)
num_written = btrfs_direct_write(iocb, from);
else
num_written = btrfs_buffered_write(iocb, from);
@@ -3606,7 +3636,7 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)
static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC | FMODE_ENCODED_IO;
return generic_file_open(inode, filp);
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e09af2c8083a..81e5edee4e99 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -960,7 +960,7 @@ static noinline void submit_compressed_extents(struct async_chunk *async_chunk)
ins.offset, async_extent->pages,
async_extent->nr_pages,
async_chunk->write_flags,
- async_chunk->blkcg_css)) {
+ async_chunk->blkcg_css, true)) {
struct page *p = async_extent->pages[0];
const u64 start = async_extent->start;
const u64 end = start + async_extent->ram_size - 1;
@@ -2861,6 +2861,7 @@ static int insert_ordered_extent_file_extent(struct btrfs_trans_handle *trans,
* except if the ordered extent was truncated.
*/
update_inode_bytes = test_bit(BTRFS_ORDERED_DIRECT, &oe->flags) ||
+ test_bit(BTRFS_ORDERED_ENCODED, &oe->flags) ||
test_bit(BTRFS_ORDERED_TRUNCATED, &oe->flags);
return insert_reserved_file_extent(trans, BTRFS_I(oe->inode),
@@ -2895,7 +2896,8 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
if (!test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags) &&
!test_bit(BTRFS_ORDERED_PREALLOC, &ordered_extent->flags) &&
- !test_bit(BTRFS_ORDERED_DIRECT, &ordered_extent->flags))
+ !test_bit(BTRFS_ORDERED_DIRECT, &ordered_extent->flags) &&
+ !test_bit(BTRFS_ORDERED_ENCODED, &ordered_extent->flags))
clear_bits |= EXTENT_DELALLOC_NEW;
freespace_inode = btrfs_is_free_space_inode(inode);
@@ -10773,6 +10775,256 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter)
return ret;
}
+ssize_t btrfs_do_encoded_write(struct kiocb *iocb, struct iov_iter *from,
+ struct encoded_iov *encoded)
+{
+ struct inode *inode = file_inode(iocb->ki_filp);
+ struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
+ struct extent_changeset *data_reserved = NULL;
+ struct extent_state *cached_state = NULL;
+ int compression;
+ size_t orig_count;
+ u64 start, end;
+ u64 num_bytes, ram_bytes, disk_num_bytes;
+ unsigned long nr_pages, i;
+ struct page **pages;
+ struct btrfs_key ins;
+ bool extent_reserved = false;
+ struct extent_map *em;
+ ssize_t ret;
+
+ switch (encoded->compression) {
+ case ENCODED_IOV_COMPRESSION_BTRFS_ZLIB:
+ compression = BTRFS_COMPRESS_ZLIB;
+ break;
+ case ENCODED_IOV_COMPRESSION_BTRFS_ZSTD:
+ compression = BTRFS_COMPRESS_ZSTD;
+ break;
+ case ENCODED_IOV_COMPRESSION_BTRFS_LZO_4K:
+ case ENCODED_IOV_COMPRESSION_BTRFS_LZO_8K:
+ case ENCODED_IOV_COMPRESSION_BTRFS_LZO_16K:
+ case ENCODED_IOV_COMPRESSION_BTRFS_LZO_32K:
+ case ENCODED_IOV_COMPRESSION_BTRFS_LZO_64K:
+ /* The page size must match for LZO. */
+ if (encoded->compression -
+ ENCODED_IOV_COMPRESSION_BTRFS_LZO_4K + 12 != PAGE_SHIFT)
+ return -EINVAL;
+ compression = BTRFS_COMPRESS_LZO;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (encoded->encryption != ENCODED_IOV_ENCRYPTION_NONE)
+ return -EINVAL;
+
+ orig_count = iov_iter_count(from);
+
+ /* The extent size must be sane. */
+ if (encoded->unencoded_len > BTRFS_MAX_UNCOMPRESSED ||
+ orig_count > BTRFS_MAX_COMPRESSED || orig_count == 0)
+ return -EINVAL;
+
+ /*
+ * The compressed data must be smaller than the decompressed data.
+ *
+ * It's of course possible for data to compress to larger or the same
+ * size, but the buffered I/O path falls back to no compression for such
+ * data, and we don't want to break any assumptions by creating these
+ * extents.
+ *
+ * Note that this is less strict than the current check we have that the
+ * compressed data must be at least one sector smaller than the
+ * decompressed data. We only want to enforce the weaker requirement
+ * from old kernels that it is at least one byte smaller.
+ */
+ if (orig_count >= encoded->unencoded_len)
+ return -EINVAL;
+
+ /* The extent must start on a sector boundary. */
+ start = iocb->ki_pos;
+ if (!IS_ALIGNED(start, fs_info->sectorsize))
+ return -EINVAL;
+
+ /*
+ * The extent must end on a sector boundary. However, we allow a write
+ * which ends at or extends i_size to have an unaligned length; we round
+ * up the extent size and set i_size to the unaligned end.
+ */
+ if (start + encoded->len < inode->i_size &&
+ !IS_ALIGNED(start + encoded->len, fs_info->sectorsize))
+ return -EINVAL;
+
+ /* Finally, the offset in the unencoded data must be sector-aligned. */
+ if (!IS_ALIGNED(encoded->unencoded_offset, fs_info->sectorsize))
+ return -EINVAL;
+
+ num_bytes = ALIGN(encoded->len, fs_info->sectorsize);
+ ram_bytes = ALIGN(encoded->unencoded_len, fs_info->sectorsize);
+ end = start + num_bytes - 1;
+
+ /*
+ * If the extent cannot be inline, the compressed data on disk must be
+ * sector-aligned. For convenience, we extend it with zeroes if it
+ * isn't.
+ */
+ disk_num_bytes = ALIGN(orig_count, fs_info->sectorsize);
+ nr_pages = DIV_ROUND_UP(disk_num_bytes, PAGE_SIZE);
+ pages = kvcalloc(nr_pages, sizeof(struct page *), GFP_KERNEL_ACCOUNT);
+ if (!pages)
+ return -ENOMEM;
+ for (i = 0; i < nr_pages; i++) {
+ size_t bytes = min_t(size_t, PAGE_SIZE, iov_iter_count(from));
+ char *kaddr;
+
+ pages[i] = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_HIGHMEM);
+ if (!pages[i]) {
+ ret = -ENOMEM;
+ goto out_pages;
+ }
+ kaddr = kmap(pages[i]);
+ if (copy_from_iter(kaddr, bytes, from) != bytes) {
+ kunmap(pages[i]);
+ ret = -EFAULT;
+ goto out_pages;
+ }
+ if (bytes < PAGE_SIZE)
+ memset(kaddr + bytes, 0, PAGE_SIZE - bytes);
+ kunmap(pages[i]);
+ }
+
+ for (;;) {
+ struct btrfs_ordered_extent *ordered;
+
+ ret = btrfs_wait_ordered_range(inode, start, num_bytes);
+ if (ret)
+ goto out_pages;
+ ret = invalidate_inode_pages2_range(inode->i_mapping,
+ start >> PAGE_SHIFT,
+ end >> PAGE_SHIFT);
+ if (ret)
+ goto out_pages;
+ lock_extent_bits(io_tree, start, end, &cached_state);
+ ordered = btrfs_lookup_ordered_range(BTRFS_I(inode), start,
+ num_bytes);
+ if (!ordered &&
+ !filemap_range_has_page(inode->i_mapping, start, end))
+ break;
+ if (ordered)
+ btrfs_put_ordered_extent(ordered);
+ unlock_extent_cached(io_tree, start, end, &cached_state);
+ cond_resched();
+ }
+
+ /*
+ * We don't use the higher-level delalloc space functions because our
+ * num_bytes and disk_num_bytes are different.
+ */
+ ret = btrfs_alloc_data_chunk_ondemand(BTRFS_I(inode), disk_num_bytes);
+ if (ret)
+ goto out_unlock;
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved, start,
+ num_bytes);
+ if (ret)
+ goto out_free_data_space;
+ ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode), num_bytes,
+ disk_num_bytes);
+ if (ret)
+ goto out_qgroup_free_data;
+
+ /* Try an inline extent first. */
+ if (start == 0 && encoded->unencoded_len == encoded->len &&
+ encoded->unencoded_offset == 0) {
+ ret = cow_file_range_inline(BTRFS_I(inode), encoded->len,
+ orig_count, compression, pages,
+ true);
+ if (ret <= 0) {
+ if (ret == 0)
+ ret = orig_count;
+ goto out_delalloc_release;
+ }
+ }
+
+ ret = btrfs_reserve_extent(root, disk_num_bytes, disk_num_bytes,
+ disk_num_bytes, 0, 0, &ins, 1, 1);
+ if (ret)
+ goto out_delalloc_release;
+ extent_reserved = true;
+
+ em = create_io_em(BTRFS_I(inode), start, num_bytes,
+ start - encoded->unencoded_offset, ins.objectid,
+ ins.offset, ins.offset, ram_bytes, compression,
+ BTRFS_ORDERED_COMPRESSED);
+ if (IS_ERR(em)) {
+ ret = PTR_ERR(em);
+ goto out_free_reserved;
+ }
+ free_extent_map(em);
+
+ ret = btrfs_add_ordered_extent(BTRFS_I(inode), start, num_bytes,
+ ram_bytes, ins.objectid, ins.offset,
+ encoded->unencoded_offset,
+ (1 << BTRFS_ORDERED_ENCODED) |
+ (1 << BTRFS_ORDERED_COMPRESSED),
+ compression);
+ if (ret) {
+ btrfs_drop_extent_cache(BTRFS_I(inode), start, end, 0);
+ goto out_free_reserved;
+ }
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
+
+ if (start + encoded->len > inode->i_size)
+ i_size_write(inode, start + encoded->len);
+
+ unlock_extent_cached(io_tree, start, end, &cached_state);
+
+ btrfs_delalloc_release_extents(BTRFS_I(inode), num_bytes);
+
+ if (btrfs_submit_compressed_write(BTRFS_I(inode), start, num_bytes,
+ ins.objectid, ins.offset, pages,
+ nr_pages, 0, NULL, false)) {
+ btrfs_writepage_endio_finish_ordered(BTRFS_I(inode), pages[0],
+ start, end, 0);
+ ret = -EIO;
+ goto out_pages;
+ }
+ ret = orig_count;
+ goto out;
+
+out_free_reserved:
+ btrfs_dec_block_group_reservations(fs_info, ins.objectid);
+ btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 1);
+out_delalloc_release:
+ btrfs_delalloc_release_extents(BTRFS_I(inode), num_bytes);
+ btrfs_delalloc_release_metadata(BTRFS_I(inode), disk_num_bytes,
+ ret < 0);
+out_qgroup_free_data:
+ if (ret < 0) {
+ btrfs_qgroup_free_data(BTRFS_I(inode), data_reserved, start,
+ num_bytes);
+ }
+out_free_data_space:
+ /*
+ * If btrfs_reserve_extent() succeeded, then we already decremented
+ * bytes_may_use.
+ */
+ if (!extent_reserved)
+ btrfs_free_reserved_data_space_noquota(fs_info, disk_num_bytes);
+out_unlock:
+ unlock_extent_cached(io_tree, start, end, &cached_state);
+out_pages:
+ for (i = 0; i < nr_pages; i++) {
+ if (pages[i])
+ __free_page(pages[i]);
+ }
+ kvfree(pages);
+out:
+ if (ret >= 0)
+ iocb->ki_pos += encoded->len;
+ return ret;
+}
+
#ifdef CONFIG_SWAP
/*
* Add an entry indicating a block group or device which is pinned by a
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 96357d2c845e..07be2775b895 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -526,9 +526,15 @@ void btrfs_remove_ordered_extent(struct btrfs_inode *btrfs_inode,
spin_lock(&btrfs_inode->lock);
btrfs_mod_outstanding_extents(btrfs_inode, -1);
spin_unlock(&btrfs_inode->lock);
- if (root != fs_info->tree_root)
- btrfs_delalloc_release_metadata(btrfs_inode, entry->num_bytes,
- false);
+ if (root != fs_info->tree_root) {
+ u64 release;
+
+ if (test_bit(BTRFS_ORDERED_ENCODED, &entry->flags))
+ release = entry->disk_num_bytes;
+ else
+ release = entry->num_bytes;
+ btrfs_delalloc_release_metadata(btrfs_inode, release, false);
+ }
percpu_counter_add_batch(&fs_info->ordered_bytes, -entry->num_bytes,
fs_info->delalloc_batch);
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 81648a78f933..888b03689a9e 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -74,6 +74,8 @@ enum {
BTRFS_ORDERED_LOGGED_CSUM,
/* We wait for this extent to complete in the current transaction */
BTRFS_ORDERED_PENDING,
+ /* RWF_ENCODED I/O */
+ BTRFS_ORDERED_ENCODED,
};
/* BTRFS_ORDERED_* flags that specify the type of the extent. */
@@ -81,7 +83,8 @@ enum {
(1UL << BTRFS_ORDERED_NOCOW) | \
(1UL << BTRFS_ORDERED_PREALLOC) | \
(1UL << BTRFS_ORDERED_COMPRESSED) | \
- (1UL << BTRFS_ORDERED_DIRECT))
+ (1UL << BTRFS_ORDERED_DIRECT) | \
+ (1UL << BTRFS_ORDERED_ENCODED))
struct btrfs_ordered_extent {
/* logical offset in the file */
--
2.32.0
prev parent reply other threads:[~2021-06-17 23:52 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 23:51 [PATCH RESEND x3 v9 0/9] fs: interface for directly reading/writing compressed data Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 1/9] iov_iter: add copy_struct_from_iter() Omar Sandoval
2021-06-18 18:50 ` Linus Torvalds
2021-06-18 19:42 ` Al Viro
2021-06-18 19:49 ` Al Viro
2021-06-18 20:33 ` Omar Sandoval
2021-06-18 20:32 ` Omar Sandoval
2021-06-18 20:58 ` Al Viro
2021-06-18 21:10 ` Linus Torvalds
2021-06-18 21:32 ` Al Viro
2021-06-18 21:40 ` Linus Torvalds
2021-06-18 22:10 ` Omar Sandoval
2021-06-18 22:32 ` Al Viro
2021-06-19 0:43 ` Omar Sandoval
2021-06-21 18:46 ` Omar Sandoval
2021-06-21 19:33 ` Linus Torvalds
2021-06-21 20:46 ` Omar Sandoval
2021-06-21 20:53 ` Omar Sandoval
2021-06-21 20:55 ` Omar Sandoval
2021-06-22 22:06 ` Dave Chinner
2021-06-23 17:49 ` Omar Sandoval
2021-06-23 18:28 ` Linus Torvalds
2021-06-23 19:33 ` Omar Sandoval
2021-06-23 19:45 ` Al Viro
2021-06-23 20:46 ` Omar Sandoval
2021-06-23 21:39 ` Al Viro
2021-06-23 21:58 ` Omar Sandoval
2021-06-23 22:26 ` Al Viro
2021-06-24 2:00 ` Matthew Wilcox
2021-06-24 6:14 ` Omar Sandoval
2021-06-24 17:52 ` Linus Torvalds
2021-06-24 18:28 ` Omar Sandoval
2021-06-24 21:07 ` Linus Torvalds
2021-06-24 22:41 ` Martin K. Petersen
2021-06-25 3:38 ` Matthew Wilcox
2021-06-25 16:16 ` Linus Torvalds
2021-06-25 21:07 ` Omar Sandoval
2021-07-07 17:59 ` Omar Sandoval
2021-07-19 15:44 ` Josef Bacik
2021-06-24 6:41 ` Christoph Hellwig
2021-06-24 7:50 ` Omar Sandoval
2021-06-18 22:14 ` Al Viro
2021-06-17 23:51 ` [PATCH RESEND x3 v9 2/9] fs: add O_ALLOW_ENCODED open flag Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 3/9] fs: add RWF_ENCODED for reading/writing compressed data Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 4/9] btrfs: don't advance offset for compressed bios in btrfs_csum_one_bio() Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 5/9] btrfs: add ram_bytes and offset to btrfs_ordered_extent Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 6/9] btrfs: support different disk extent size for delalloc Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 7/9] btrfs: optionally extend i_size in cow_file_range_inline() Omar Sandoval
2021-06-17 23:51 ` [PATCH RESEND x3 v9 8/9] btrfs: implement RWF_ENCODED reads Omar Sandoval
2021-06-17 23:51 ` Omar Sandoval [this message]
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