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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-09-02 22:46:22 +0300
committerAndrew Morton <akpm@linux-foundation.org>2022-10-04 00:02:49 +0300
commiteff1f906c2dcd83ce7cbd38d2b853d2c49027f39 (patch)
tree286413a3293aefa04cfb836510bf9917c7c73591 /mm/shmem.c
parenta7f5862cc0624ca6b21da5a634ff232dc65776b5 (diff)
downloadlinux-eff1f906c2dcd83ce7cbd38d2b853d2c49027f39.tar.xz
shmem: convert shmem_write_begin() to use shmem_get_folio()
Use a folio throughout this function, saving a couple of calls to compound_head(). Link: https://lkml.kernel.org/r/20220902194653.1739778-27-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/shmem.c')
-rw-r--r--mm/shmem.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 772a30593fcc..c69b53602a1d 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2498,6 +2498,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
struct inode *inode = mapping->host;
struct shmem_inode_info *info = SHMEM_I(inode);
pgoff_t index = pos >> PAGE_SHIFT;
+ struct folio *folio;
int ret = 0;
/* i_rwsem is held by caller */
@@ -2509,14 +2510,15 @@ shmem_write_begin(struct file *file, struct address_space *mapping,
return -EPERM;
}
- ret = shmem_getpage(inode, index, pagep, SGP_WRITE);
+ ret = shmem_get_folio(inode, index, &folio, SGP_WRITE);
if (ret)
return ret;
+ *pagep = folio_file_page(folio, index);
if (PageHWPoison(*pagep)) {
- unlock_page(*pagep);
- put_page(*pagep);
+ folio_unlock(folio);
+ folio_put(folio);
*pagep = NULL;
return -EIO;
}