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authorChristoph Hellwig <hch@lst.de>2020-09-25 06:19:19 +0200
committerChristoph Hellwig <hch@lst.de>2020-09-25 06:19:19 +0200
commit8c1c6c7588b2faf9dd45fb3cfb7497fd09bbfe7c (patch)
tree50a7ddcfd7e7b1a7e4fb656bb88a036dbcff4bd6 /fs/ext2/file.c
parent38225f2ef2f4263fc65acae63fdd4e8489c9ffcf (diff)
parent171d4ff79f965c1f164705ef0aaea102a6ad238b (diff)
Merge branch 'master' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into dma-mapping-for-next
Pull in the latest 5.9 tree for the commit to revert the V4L2_FLAG_MEMORY_NON_CONSISTENT uapi addition.
Diffstat (limited to 'fs/ext2/file.c')
-rw-r--r--fs/ext2/file.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 60378ddf1424b..96044f5dbc0e0 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -93,8 +93,10 @@ static vm_fault_t ext2_dax_fault(struct vm_fault *vmf)
struct inode *inode = file_inode(vmf->vma->vm_file);
struct ext2_inode_info *ei = EXT2_I(inode);
vm_fault_t ret;
+ bool write = (vmf->flags & FAULT_FLAG_WRITE) &&
+ (vmf->vma->vm_flags & VM_SHARED);
- if (vmf->flags & FAULT_FLAG_WRITE) {
+ if (write) {
sb_start_pagefault(inode->i_sb);
file_update_time(vmf->vma->vm_file);
}
@@ -103,7 +105,7 @@ static vm_fault_t ext2_dax_fault(struct vm_fault *vmf)
ret = dax_iomap_fault(vmf, PE_SIZE_PTE, NULL, NULL, &ext2_iomap_ops);
up_read(&ei->dax_sem);
- if (vmf->flags & FAULT_FLAG_WRITE)
+ if (write)
sb_end_pagefault(inode->i_sb);
return ret;
}