kernel/git/next/linux-next.git/fs/nfs/nfstrace.h, branch master

Merge branch 'headers' of git://git.infradead.org/users/willy/pagecache.git

2026-09-07T13:49:19+00:00

# Conflicts: # net/ceph/osd_client.c

nfs: Remove pagemap.h from includes

2026-08-25T19:12:27+00:00

These two header files don't use anything from pagemap.h. Some files were depending on it being included, so add it directly to those files. Signed-off-by: Matthew Wilcox (Oracle)

nfs4.2: add UNCACHEABLE_FILE_DATA attribute support

2026-08-17T16:02:07+00:00

Recognize the NFSv4.2 per-file UNCACHEABLE_FILE_DATA attribute (attr 87, draft-ietf-nfsv4-uncacheable-files): decode it via GETATTR, track per- exported-filesystem support, and record on the inode whether a regular file's data must not be cached. Acting on the attribute (opening such files O_DIRECT) is done by a subsequent change. If the NFSv4 server reports a regular file's UNCACHEABLE_FILE_DATA as true, it indicates the file's data must not be cached; the client records this in NFS_I(inode)->uncacheable_file_data for use by the I/O paths. The UNCACHEABLE_FILE_DATA attribute applies only to regular files (NF4REG); per the draft a server MUST reject a query of it on any other object type with NFS4ERR_INVAL. A subsequent commit gates the client accordingly. Link: https://datatracker.ietf.org/doc/draft-ietf-nfsv4-uncacheable-files/ Signed-off-by: Tom Haynes [snitzer: adapt Tom's original code focused on metadata for ABE] Co-developed-by: Mike Snitzer Signed-off-by: Mike Snitzer Signed-off-by: Mike Snitzer Assisted-by: Claude:claude-opus-4-8 Signed-off-by: Trond Myklebust

nfs: replace NFS_FILEID() and nfsi->fileid with inode->i_ino

2026-06-08T14:21:54+00:00

Now that inode->i_ino stores the full 64-bit NFS fileid, replace all uses of NFS_FILEID(), set_nfs_fileid(), and direct nfsi->fileid accesses with inode->i_ino throughout the NFS client. Remove the NFS_FILEID() and set_nfs_fileid() helper functions from include/linux/nfs_fs.h since they are no longer needed. Also fix two pre-existing truncation bugs in nfs4trace.h where fileid trace fields were declared as u32 instead of u64. Assisted-by: Claude:claude-opus-4-6 Signed-off-by: Jeff Layton Signed-off-by: Anna Schumaker

NFS: remove redundant __private attribute from nfs_page_class

2026-04-22T12:53:23+00:00

The nfs_page_class tracepoint uses a pointer for the 'req' field marked with the __private attribute. This causes Sparse to complain about dereferencing a private pointer within the trace ring buffer context, specifically during the TP_fast_assign() operation. This fixes a Sparse warning introduced in commit b6ef079fd984 ("nfs: more in-depth tracing of writepage events") by removing the redundant __private attribute from the 'req' field. Reviewed-by: Benjamin Coddington Signed-off-by: Sean Chang Signed-off-by: Trond Myklebust

NFS: Fix a deadlock involving nfs_release_folio()

2026-01-05T04:03:24+00:00

Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfs_release_folio(). The latter cannot make progress due to state recovery being needed. It seems that the only safe thing to do here is to kick off a writeback of the folio, without waiting for completion, or else kicking off an asynchronous commit. Reported-by: Wang Zhaolong Fixes: 96780ca55e3c ("NFS: fix up nfs_release_folio() to try to release the page") Signed-off-by: Trond Myklebust

nfs/localio: add tracepoints for misaligned DIO READ and WRITE support

2025-09-30T20:10:30+00:00

Add nfs_local_dio_class and use it to create nfs_local_dio_read, nfs_local_dio_write and nfs_local_dio_misaligned trace events. These trace events show how NFS LOCALIO splits a given misaligned IO into a mix of misaligned head and/or tail extents and a DIO-aligned middle extent. The misaligned head and/or tail extents are issued using buffered IO and the DIO-aligned middle is issued using O_DIRECT. This combination of trace events is useful for LOCALIO DIO READs: echo 1 > /sys/kernel/tracing/events/nfs/nfs_local_dio_read/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_local_dio_misaligned/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_initiate_read/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_readpage_done/enable echo 1 > /sys/kernel/tracing/events/xfs/xfs_file_direct_read/enable This combination of trace events is useful for LOCALIO DIO WRITEs: echo 1 > /sys/kernel/tracing/events/nfs/nfs_local_dio_write/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_local_dio_misaligned/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_initiate_write/enable echo 1 > /sys/kernel/tracing/events/nfs/nfs_writeback_done/enable echo 1 > /sys/kernel/tracing/events/xfs/xfs_file_direct_write/enable Signed-off-by: Mike Snitzer Signed-off-by: Anna Schumaker

nfs/localio: make trace_nfs_local_open_fh more useful

2025-09-30T20:10:29+00:00

Always trigger trace event when LOCALIO opens a file. Signed-off-by: Mike Snitzer Signed-off-by: Anna Schumaker

nfs: cleanup tracepoint declarations

2025-09-23T17:28:19+00:00

Cleanup tracepoint declarations by replacing commas with semicolons to better match other tracepoint declarations. No functional changes introduced. Signed-off-by: Leo Martins Reviewed-by: Jeff Layton Signed-off-by: Anna Schumaker

nfs: add tracepoints to nfs_writepages()

2025-09-23T17:28:19+00:00

Show the inode info and requested range. Signed-off-by: Jeff Layton Reviewed-by: Benjamin Coddington Signed-off-by: Anna Schumaker