diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-08-29 10:08:41 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-09-01 10:55:30 -0700 |
| commit | d522d569d6adf72ceda90153a086e089e6c2fbc6 (patch) | |
| tree | c802f52c44e5aa26f28817d686a9e68c3f71d158 /fs/xfs/xfs_trace.h | |
| parent | e7647fb49167809502724eb3c402cea77716fc67 (diff) | |
| download | linux-d522d569d6adf72ceda90153a086e089e6c2fbc6.tar.bz2 | |
xfs: consolidate the various page fault handlers
Add a new __xfs_filemap_fault helper that implements all four page fault
callouts, and make these methods themselves small stubs that set the
correct write_fault flag, and exit early for the non-DAX case for the
hugepage related ones.
Also remove the extra size checking in the pfn_fault path, which is now
handled in the core DAX code.
Life would be so much simpler if we only had one method for all this.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_trace.h')
| -rw-r--r-- | fs/xfs/xfs_trace.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index e839ab4db483..bb5514688d47 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -688,11 +688,34 @@ DEFINE_INODE_EVENT(xfs_inode_set_cowblocks_tag); DEFINE_INODE_EVENT(xfs_inode_clear_cowblocks_tag); DEFINE_INODE_EVENT(xfs_inode_free_cowblocks_invalid); -DEFINE_INODE_EVENT(xfs_filemap_fault); -DEFINE_INODE_EVENT(xfs_filemap_huge_fault); -DEFINE_INODE_EVENT(xfs_filemap_page_mkwrite); DEFINE_INODE_EVENT(xfs_filemap_pfn_mkwrite); +TRACE_EVENT(xfs_filemap_fault, + TP_PROTO(struct xfs_inode *ip, enum page_entry_size pe_size, + bool write_fault), + TP_ARGS(ip, pe_size, write_fault), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(enum page_entry_size, pe_size) + __field(bool, write_fault) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->pe_size = pe_size; + __entry->write_fault = write_fault; + ), + TP_printk("dev %d:%d ino 0x%llx %s write_fault %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_symbolic(__entry->pe_size, + { PE_SIZE_PTE, "PTE" }, + { PE_SIZE_PMD, "PMD" }, + { PE_SIZE_PUD, "PUD" }), + __entry->write_fault) +) + DECLARE_EVENT_CLASS(xfs_iref_class, TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), TP_ARGS(ip, caller_ip), |