When iocb flags passes IOCB_DONTCACHE, use FGP_DONTCACHE mode to get folio.
Signed-off-by: Yangtao Li <frank.li@xxxxxxxx>
---
fs/buffer.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/buffer.c b/fs/buffer.c
index f2b7b30a76ca..0ed80b62feea 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2251,11 +2251,14 @@ int block_write_begin(struct kiocb *iocb, struct address_space *mapping, loff_t
unsigned len, struct folio **foliop, get_block_t *get_block)
{
pgoff_t index = pos >> PAGE_SHIFT;
+ fgf_t fgp = FGP_WRITEBEGIN;
struct folio *folio;
int status;
- folio = __filemap_get_folio(mapping, index, FGP_WRITEBEGIN,
- mapping_gfp_mask(mapping));
+ if (iocb->ki_flags & IOCB_DONTCACHE)
+ fgp |= FGP_DONTCACHE;
+
+ folio = __filemap_get_folio(mapping, index, fgp, mapping_gfp_mask(mapping));
if (IS_ERR(folio))
return PTR_ERR(folio);
--
2.48.1
