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| author | Deepak R Varma <drv@mailo.com> | 2023-06-26 08:51:09 +0200 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2023-07-03 22:30:47 +0200 |
| commit | 58721bd46c9aaa2d890b2d61cbb8740745455aa9 (patch) | |
| tree | e2a37316bd3f0ffdec04c64106a464bc50445630 /fs/gfs2/aops.c | |
| parent | gfs: Get rid of unnucessary locking in inode_go_dump (diff) | |
| download | linux-58721bd46c9aaa2d890b2d61cbb8740745455aa9.tar.xz linux-58721bd46c9aaa2d890b2d61cbb8740745455aa9.zip | |
gfs2: Replace deprecated kmap_atomic with kmap_local_page
kmap_atomic() is deprecated in favor of kmap_local_{folio,page}().
Therefore, replace kmap_atomic() with kmap_local_page() in
gfs2_internal_read() and stuffed_readpage().
kmap_atomic() disables page-faults and preemption (the latter only for
!PREEMPT_RT kernels), However, the code within the mapping/un-mapping in
gfs2_internal_read() and stuffed_readpage() 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()).
Signed-off-by: Deepak R Varma <drv@mailo.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/gfs2/aops.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index dacc21b1ae00..c45bac9b5408 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -431,10 +431,10 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page) if (error) return error; - kaddr = kmap_atomic(page); + kaddr = kmap_local_page(page); memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize); memset(kaddr + dsize, 0, PAGE_SIZE - dsize); - kunmap_atomic(kaddr); + kunmap_local(kaddr); flush_dcache_page(page); brelse(dibh); SetPageUptodate(page); @@ -497,12 +497,12 @@ int gfs2_internal_read(struct gfs2_inode *ip, char *buf, loff_t *pos, continue; return PTR_ERR(page); } - p = kmap_atomic(page); + p = kmap_local_page(page); amt = size - copied; if (offset + size > PAGE_SIZE) amt = PAGE_SIZE - offset; memcpy(buf + copied, p + offset, amt); - kunmap_atomic(p); + kunmap_local(p); put_page(page); copied += amt; index++; |