diff options
| author | Matthew Wilcox (Oracle) | 2021-08-04 20:07:33 -0700 |
|---|---|---|
| committer | Darrick J. Wong | 2021-08-05 10:30:33 -0700 |
| commit | ab069d5fdcd14530d4223746c8d01f421d4c4057 (patch) | |
| tree | 1b86a2ef451f3d4a0ea834c8aa55309b74a18eff /fs/iomap/buffered-io.c | |
| parent | f1f264b4c134ee65cdadece7a20f3c0643602a4a (diff) | |
iomap: Use kmap_local_page instead of kmap_atomic
kmap_atomic() has the side-effect of disabling pagefaults and
preemption. kmap_local_page() does not do this and is preferred.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/iomap/buffered-io.c')
| -rw-r--r-- | fs/iomap/buffered-io.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index c1c8cd41ea81..8ee0211bea86 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -223,10 +223,10 @@ static int iomap_read_inline_data(struct inode *inode, struct page *page, if (poff > 0) iomap_page_create(inode, page); - addr = kmap_atomic(page) + poff; + addr = kmap_local_page(page) + poff; memcpy(addr, iomap->inline_data, size); memset(addr + size, 0, PAGE_SIZE - poff - size); - kunmap_atomic(addr); + kunmap_local(addr); iomap_set_range_uptodate(page, poff, PAGE_SIZE - poff); return PAGE_SIZE - poff; } @@ -682,9 +682,9 @@ static size_t iomap_write_end_inline(struct inode *inode, struct page *page, BUG_ON(!iomap_inline_data_valid(iomap)); flush_dcache_page(page); - addr = kmap_atomic(page); - memcpy(iomap_inline_data(iomap, pos), addr + pos, copied); - kunmap_atomic(addr); + addr = kmap_local_page(page) + pos; + memcpy(iomap_inline_data(iomap, pos), addr, copied); + kunmap_local(addr); mark_inode_dirty(inode); return copied; |