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| author | Mark Brown <broonie@kernel.org> | 2022-11-25 21:26:29 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-25 21:26:29 +0000 |
| commit | acdce7aa7a4fc1094661feb0b833ae2eec2ad2d0 (patch) | |
| tree | 7b6654b2110f660651bae25728b5ab59227faa56 /fs/btrfs/compression.c | |
| parent | a6d99022e56e8c1ddc4c75895ed9e3ce5da88453 (diff) | |
| parent | bf0d29fb51ff5e6c13097dbfed7b99e0e35b4a15 (diff) | |
| download | linux-acdce7aa7a4fc1094661feb0b833ae2eec2ad2d0.tar.bz2 | |
fsi: Add regmap and refactor sbefifo
Merge series from Eddie James <eajames@linux.ibm.com>:
The SBEFIFO hardware can now be attached over a new I2C endpoint interface
called the I2C Responder (I2CR). In order to use the existing SBEFIFO
driver, add a regmap driver for the FSI bus and an endpoint driver for the
I2CR. Then, refactor the SBEFIFO and OCC drivers to clean up and use the
new regmap driver or the I2CR interface.
This branch just has the regmap change so it can be shared with the FSI
code.
Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index f1f051ad3147..e6635fe70067 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -512,7 +512,7 @@ static u64 bio_end_offset(struct bio *bio) static noinline int add_ra_bio_pages(struct inode *inode, u64 compressed_end, struct compressed_bio *cb, - unsigned long *pflags) + int *memstall, unsigned long *pflags) { struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); unsigned long end_index; @@ -581,8 +581,10 @@ static noinline int add_ra_bio_pages(struct inode *inode, continue; } - if (PageWorkingset(page)) + if (!*memstall && PageWorkingset(page)) { psi_memstall_enter(pflags); + *memstall = 1; + } ret = set_page_extent_mapped(page); if (ret < 0) { @@ -670,8 +672,8 @@ void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, u64 em_len; u64 em_start; struct extent_map *em; - /* Initialize to 1 to make skip psi_memstall_leave unless needed */ - unsigned long pflags = 1; + unsigned long pflags; + int memstall = 0; blk_status_t ret; int ret2; int i; @@ -727,7 +729,7 @@ void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, goto fail; } - add_ra_bio_pages(inode, em_start + em_len, cb, &pflags); + add_ra_bio_pages(inode, em_start + em_len, cb, &memstall, &pflags); /* include any pages we added in add_ra-bio_pages */ cb->len = bio->bi_iter.bi_size; @@ -807,7 +809,7 @@ void btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, } } - if (!pflags) + if (memstall) psi_memstall_leave(&pflags); if (refcount_dec_and_test(&cb->pending_ios)) |