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authorNikolay Borisov <nborisov@suse.com>2020-12-10 11:38:32 +0300
committerDavid Sterba <dsterba@suse.com>2021-02-09 00:58:49 +0300
commit149716570be98185150860fe922bf89ed080bd3c (patch)
treee6348102c2b6a3eac0d9aaac2f124954d8c3f7d0 /fs
parent3cc64e7ebfb0d7faaba2438334c43466955a96e8 (diff)
downloadlinux-149716570be98185150860fe922bf89ed080bd3c.tar.xz
btrfs: cleanup local variables in btrfs_file_write_iter
First replace all inode instances with a pointer to btrfs_inode. This removes multiple invocations of the BTRFS_I macro, subsequently remove 2 local variables as they are called only once and simply refer to them directly. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/file.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 0e41459b8de6..e65223e3510d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1997,9 +1997,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
- struct inode *inode = file_inode(file);
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
+ struct btrfs_inode *inode = BTRFS_I(file_inode(file));
ssize_t num_written = 0;
const bool sync = iocb->ki_flags & IOCB_DSYNC;
@@ -2008,7 +2006,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
* have opened a file as writable, we have to stop this write operation
* to ensure consistency.
*/
- if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state))
+ if (test_bit(BTRFS_FS_STATE_ERROR, &inode->root->fs_info->fs_state))
return -EROFS;
if (!(iocb->ki_flags & IOCB_DIRECT) &&
@@ -2016,7 +2014,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
return -EOPNOTSUPP;
if (sync)
- atomic_inc(&BTRFS_I(inode)->sync_writers);
+ atomic_inc(&inode->sync_writers);
if (iocb->ki_flags & IOCB_DIRECT)
num_written = btrfs_direct_write(iocb, from);
@@ -2028,14 +2026,14 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
* otherwise subsequent syncs to a file that's been synced in this
* transaction will appear to have already occurred.
*/
- spin_lock(&BTRFS_I(inode)->lock);
- BTRFS_I(inode)->last_sub_trans = root->log_transid;
- spin_unlock(&BTRFS_I(inode)->lock);
+ spin_lock(&inode->lock);
+ inode->last_sub_trans = inode->root->log_transid;
+ spin_unlock(&inode->lock);
if (num_written > 0)
num_written = generic_write_sync(iocb, num_written);
if (sync)
- atomic_dec(&BTRFS_I(inode)->sync_writers);
+ atomic_dec(&inode->sync_writers);
current->backing_dev_info = NULL;
return num_written;