diff options
| -rw-r--r-- | fs/xfs/scrub/trace.h | 1 | ||||
| -rw-r--r-- | fs/xfs/scrub/xfile.c | 12 | ||||
| -rw-r--r-- | fs/xfs/scrub/xfile.h | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/fs/xfs/scrub/trace.h b/fs/xfs/scrub/trace.h index 8d05f2adae3d..7d07912d8f75 100644 --- a/fs/xfs/scrub/trace.h +++ b/fs/xfs/scrub/trace.h @@ -948,6 +948,7 @@ DEFINE_XFILE_EVENT(xfile_store); DEFINE_XFILE_EVENT(xfile_seek_data); DEFINE_XFILE_EVENT(xfile_get_folio); DEFINE_XFILE_EVENT(xfile_put_folio); +DEFINE_XFILE_EVENT(xfile_discard); TRACE_EVENT(xfarray_create, TP_PROTO(struct xfarray *xfa, unsigned long long required_capacity), diff --git a/fs/xfs/scrub/xfile.c b/fs/xfs/scrub/xfile.c index 8cdd863db585..4e254a0ba003 100644 --- a/fs/xfs/scrub/xfile.c +++ b/fs/xfs/scrub/xfile.c @@ -310,3 +310,15 @@ xfile_put_folio( folio_unlock(folio); folio_put(folio); } + +/* Discard the page cache that's backing a range of the xfile. */ +void +xfile_discard( + struct xfile *xf, + loff_t pos, + u64 count) +{ + trace_xfile_discard(xf, pos, count); + + shmem_truncate_range(file_inode(xf->file), pos, pos + count - 1); +} diff --git a/fs/xfs/scrub/xfile.h b/fs/xfs/scrub/xfile.h index 76d78dba7e34..8dfbae1fe33a 100644 --- a/fs/xfs/scrub/xfile.h +++ b/fs/xfs/scrub/xfile.h @@ -17,6 +17,7 @@ int xfile_load(struct xfile *xf, void *buf, size_t count, loff_t pos); int xfile_store(struct xfile *xf, const void *buf, size_t count, loff_t pos); +void xfile_discard(struct xfile *xf, loff_t pos, u64 count); loff_t xfile_seek_data(struct xfile *xf, loff_t pos); #define XFILE_MAX_FOLIO_SIZE (PAGE_SIZE << MAX_PAGECACHE_ORDER) |