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xfs: create a helper to count per-device inode block usage

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Create a helper to compute the number of blocks that a file has
allocated from the data realtime volumes.  This patch was
split out to reduce the size of the upcoming quotacheck patch.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-02-22 12:30:53 -08:00
parent 564fee6d20
commit ebd610fe82
2 changed files with 18 additions and 0 deletions
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16
fs/xfs/xfs_inode.c
View File

@ -3755,3 +3755,19 @@ xfs_ifork_zapped(
return false;
}
}
/* Compute the number of data and realtime blocks used by a file. */
void
xfs_inode_count_blocks(
struct xfs_trans *tp,
struct xfs_inode *ip,
xfs_filblks_t *dblocks,
xfs_filblks_t *rblocks)
{
struct xfs_ifork *ifp = xfs_ifork_ptr(ip, XFS_DATA_FORK);
*rblocks = 0;
if (XFS_IS_REALTIME_INODE(ip))
xfs_bmap_count_leaves(ifp, rblocks);
*dblocks = ip->i_nblocks - *rblocks;
}

2
fs/xfs/xfs_inode.h
View File

@ -623,5 +623,7 @@ int xfs_inode_reload_unlinked_bucket(struct xfs_trans *tp, struct xfs_inode *ip)
int xfs_inode_reload_unlinked(struct xfs_inode *ip);
bool xfs_ifork_zapped(const struct xfs_inode *ip, int whichfork);
void xfs_inode_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
xfs_filblks_t *dblocks, xfs_filblks_t *rblocks);
#endif /* __XFS_INODE_H__ */