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authorDarrick J. Wong <darrick.wong@oracle.com>2018-10-30 02:41:28 +0300
committerDave Chinner <david@fromorbit.com>2018-10-30 02:41:28 +0300
commita91ae49bbaf43910edb09e03fedf26b23875bd52 (patch)
tree8152c5568a957e47b986e25324846e06a6d1fd57 /fs/read_write.c
parent2e5dfc99f2e61c42083ba742395e7a7b353513d1 (diff)
downloadlinux-a91ae49bbaf43910edb09e03fedf26b23875bd52.tar.xz
vfs: pass remap flags to generic_remap_file_range_prep
Plumb the remap flags through the filesystem from the vfs function dispatcher all the way to the prep function to prepare for behavior changes in subsequent patches. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/read_write.c')
-rw-r--r--fs/read_write.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/read_write.c b/fs/read_write.c
index 766bdcb381f3..201381689284 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1722,14 +1722,14 @@ static int generic_remap_check_len(struct inode *inode_in,
struct inode *inode_out,
loff_t pos_out,
u64 *len,
- bool is_dedupe)
+ unsigned int remap_flags)
{
u64 blkmask = i_blocksize(inode_in) - 1;
if ((*len & blkmask) == 0)
return 0;
- if (is_dedupe)
+ if (remap_flags & REMAP_FILE_DEDUP)
*len &= ~blkmask;
else if (pos_out + *len < i_size_read(inode_out))
return -EINVAL;
@@ -1747,7 +1747,7 @@ static int generic_remap_check_len(struct inode *inode_in,
*/
int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out,
- u64 *len, bool is_dedupe)
+ u64 *len, unsigned int remap_flags)
{
struct inode *inode_in = file_inode(file_in);
struct inode *inode_out = file_inode(file_out);
@@ -1771,7 +1771,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
if (*len == 0) {
loff_t isize = i_size_read(inode_in);
- if (is_dedupe || pos_in == isize)
+ if ((remap_flags & REMAP_FILE_DEDUP) || pos_in == isize)
return 0;
if (pos_in > isize)
return -EINVAL;
@@ -1782,7 +1782,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
/* Check that we don't violate system file offset limits. */
ret = generic_remap_checks(file_in, pos_in, file_out, pos_out, len,
- is_dedupe);
+ (remap_flags & REMAP_FILE_DEDUP));
if (ret)
return ret;
@@ -1804,7 +1804,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
/*
* Check that the extents are the same.
*/
- if (is_dedupe) {
+ if (remap_flags & REMAP_FILE_DEDUP) {
bool is_same = false;
ret = vfs_dedupe_file_range_compare(inode_in, pos_in,
@@ -1816,7 +1816,7 @@ int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,
}
ret = generic_remap_check_len(inode_in, inode_out, pos_out, len,
- is_dedupe);
+ remap_flags);
if (ret)
return ret;