diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2020-09-21 18:58:39 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-09-21 18:59:26 +0300 |
| commit | a6901d4d148dcbad7efb3174afbdf68c995618c2 (patch) | |
| tree | 800c6f932d4cff0c52a12e9310ea2de9c9db4c97 /fs/iomap | |
| parent | 24addd848a45747bcda68418710c72fdc8e145e4 (diff) | |
| download | linux-a6901d4d148dcbad7efb3174afbdf68c995618c2.tar.xz | |
iomap: Use kzalloc to allocate iomap_page
We can skip most of the initialisation, although spinlocks still
need explicit initialisation as architectures may use a non-zero
value to indicate unlocked. The comment is no longer useful as
attach_page_private() handles the refcount now.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/iomap')
| -rw-r--r-- | fs/iomap/buffered-io.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index dd0739606dce..d1caea4c5fba 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -49,16 +49,8 @@ iomap_page_create(struct inode *inode, struct page *page) if (iop || i_blocks_per_page(inode, page) <= 1) return iop; - iop = kmalloc(sizeof(*iop), GFP_NOFS | __GFP_NOFAIL); - atomic_set(&iop->read_count, 0); - atomic_set(&iop->write_count, 0); + iop = kzalloc(sizeof(*iop), GFP_NOFS | __GFP_NOFAIL); spin_lock_init(&iop->uptodate_lock); - bitmap_zero(iop->uptodate, PAGE_SIZE / SECTOR_SIZE); - - /* - * migrate_page_move_mapping() assumes that pages with private data have - * their count elevated by 1. - */ attach_page_private(page, iop); return iop; } |