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xfs: Factor out xfs_attr_rmtval_invalidate

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Because new delayed attribute routines cannot roll transactions, we
carve off the parts of xfs_attr_rmtval_remove that we can use.  This
will help to reduce repetitive code later when we introduce delayed
attributes.

Signed-off-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Allison Collins 2020-07-20 21:47:25 -07:00 committed by Darrick J. Wong
parent 0949d317ae
commit 795141099a
2 changed files with 22 additions and 6 deletions
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26
fs/xfs/libxfs/xfs_attr_remote.c
View File

@ -634,15 +634,12 @@ xfs_attr_rmtval_set(
* out-of-line buffer that it is stored on.
*/
int
xfs_attr_rmtval_remove(
xfs_attr_rmtval_invalidate(
struct xfs_da_args *args)
{
xfs_dablk_t lblkno;
int blkcnt;
int error;
int done;
trace_xfs_attr_rmtval_remove(args);
/*
* Roll through the "value", invalidating the attribute value's blocks.
@ -670,13 +667,32 @@ xfs_attr_rmtval_remove(
lblkno += map.br_blockcount;
blkcnt -= map.br_blockcount;
}
return 0;
}
/*
* Remove the value associated with an attribute by deleting the
* out-of-line buffer that it is stored on.
*/
int
xfs_attr_rmtval_remove(
struct xfs_da_args *args)
{
xfs_dablk_t lblkno;
int blkcnt;
int error = 0;
int done = 0;
trace_xfs_attr_rmtval_remove(args);
error = xfs_attr_rmtval_invalidate(args);
if (error)
return error;
/*
* Keep de-allocating extents until the remote-value region is gone.
*/
lblkno = args->rmtblkno;
blkcnt = args->rmtblkcnt;
done = 0;
while (!done) {
error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
XFS_BMAPI_ATTRFORK, 1, &done);

2
fs/xfs/libxfs/xfs_attr_remote.h
View File

@ -13,5 +13,5 @@ int xfs_attr_rmtval_set(struct xfs_da_args *args);
int xfs_attr_rmtval_remove(struct xfs_da_args *args);
int xfs_attr_rmtval_stale(struct xfs_inode *ip, struct xfs_bmbt_irec *map,
xfs_buf_flags_t incore_flags);
int xfs_attr_rmtval_invalidate(struct xfs_da_args *args);
#endif /* __XFS_ATTR_REMOTE_H__ */