kmap_atomic() is deprecated in favor of kmap_local_{folio,page}().
Therefore, replace kmap_atomic() with kmap_local_page() in
gfs2_write_buf_to_page().
kmap_atomic() disables page-faults and preemption (the latter only for
!PREEMPT_RT kernels), However, the code within the mapping/un-mapping in
gfs2_write_buf_to_page() does not depend on the above-mentioned side
effects.
Therefore, a mere replacement of the old API with the new one is all that
is required (i.e., there is no need to explicitly add any calls to
pagefault_disable() and/or preempt_disable()).
Suggested-by: Fabio M. De Francesco <fmdefrance...@gmail.com>
Signed-off-by: Deepak R Varma <d...@mailo.com>
---
Changes in v3:
- Patch included in patch set
Changes in v2:
- None
fs/gfs2/quota.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 386ca770ce2e..e5767133aeea 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -764,10 +764,10 @@ static int gfs2_write_buf_to_page(struct gfs2_inode *ip,
unsigned long index,
}
/* Write to the page, now that we have setup the buffer(s) */
- kaddr = kmap_atomic(page);
+ kaddr = kmap_local_page(page);
memcpy(kaddr + off, buf, bytes);
flush_dcache_page(page);
- kunmap_atomic(kaddr);
+ kunmap_local(kaddr);
unlock_page(page);
put_page(page);
--
2.34.1
