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SUSE:SLE-15-SP4:Update
lttng-modules
btrfs-pass-btrfs_inode-to-btrfs_writepage_endio...
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File btrfs-pass-btrfs_inode-to-btrfs_writepage_endio_finish_ordered-v5.14.patch of Package lttng-modules
From: Michael Jeanson <mjeanson@efficios.com> Date: Mon Jul 12 15:00:26 2021 -0400 Git-commit: 39192dfbea6041eefea1676c554ba73946793c71 Subject: btrfs: pass btrfs_inode to btrfs_writepage_endio_finish_ordered() (v5.14) References: bsc#1190361 Signed-off-by: Tony Jones <tonyj@suse.de> fix: btrfs: pass btrfs_inode to btrfs_writepage_endio_finish_ordered() (v5.14) See upstream commit: commit 38a39ac77e089515acbe85c6c70c3df1e728357d Author: Qu Wenruo <wqu@suse.com> Date: Thu Apr 8 20:32:27 2021 +0800 btrfs: pass btrfs_inode to btrfs_writepage_endio_finish_ordered() There is a pretty bad abuse of btrfs_writepage_endio_finish_ordered() in end_compressed_bio_write(). It passes compressed pages to btrfs_writepage_endio_finish_ordered(), which is only supposed to accept inode pages. Thankfully the important info here is the inode, so let's pass btrfs_inode directly into btrfs_writepage_endio_finish_ordered(), and make @page parameter optional. By this, end_compressed_bio_write() can happily pass page=NULL while still getting everything done properly. Also, to cooperate with such modification, replace @page parameter for trace_btrfs_writepage_end_io_hook() with btrfs_inode. Although this removes page_index info, the existing start/len should be enough for most usage. Change-Id: If96e99c2d9533d96d9d1aa6460bb7fd3ac9ed7ab Signed-off-by: Michael Jeanson <mjeanson@efficios.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> diff --git a/instrumentation/events/lttng-module/btrfs.h b/instrumentation/events/lttng-module/btrfs.h index ca3b58c8..af9b8bed 100644 --- a/instrumentation/events/lttng-module/btrfs.h +++ b/instrumentation/events/lttng-module/btrfs.h @@ -578,6 +578,65 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(btrfs__ordered_extent, btrfs_ordered_extent_put, ) #endif +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,14,0)) +LTTNG_TRACEPOINT_EVENT(btrfs_writepage_end_io_hook, + + TP_PROTO(const struct btrfs_inode *inode, u64 start, u64 end, int uptodate), + + TP_ARGS(inode, start, end, uptodate), + + TP_FIELDS( + ctf_integer(u64, ino, btrfs_ino(inode)) + ctf_integer(u64, start, start) + ctf_integer(u64, end, end) + ctf_integer(int, uptodate, uptodate) + ctf_integer(u64, root_objectid, inode->root->root_key.objectid) + ) +) + +#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0) || \ + LTTNG_SLE_KERNEL_RANGE(4,4,73,5,0,0, 4,4,73,6,0,0) || \ + LTTNG_SLE_KERNEL_RANGE(4,4,82,6,0,0, 4,4,82,7,0,0) || \ + LTTNG_SLE_KERNEL_RANGE(4,4,92,6,0,0, 4,4,92,7,0,0) || \ + LTTNG_SLE_KERNEL_RANGE(4,4,103,6,0,0, 4,5,0,0,0,0)) + +LTTNG_TRACEPOINT_EVENT(btrfs_writepage_end_io_hook, + + TP_PROTO(const struct page *page, u64 start, u64 end, int uptodate), + + TP_ARGS(page, start, end, uptodate), + + TP_FIELDS( + ctf_integer(ino_t, ino, page->mapping->host->i_ino) + ctf_integer(pgoff_t, index, page->index) + ctf_integer(u64, start, start) + ctf_integer(u64, end, end) + ctf_integer(int, uptodate, uptodate) + ctf_integer(u64, root_objectid, + BTRFS_I(page->mapping->host)->root->root_key.objectid) + ) +) + +#else + +LTTNG_TRACEPOINT_EVENT(btrfs_writepage_end_io_hook, + + TP_PROTO(struct page *page, u64 start, u64 end, int uptodate), + + TP_ARGS(page, start, end, uptodate), + + TP_FIELDS( + ctf_integer(ino_t, ino, page->mapping->host->i_ino) + ctf_integer(pgoff_t, index, page->index) + ctf_integer(u64, start, start) + ctf_integer(u64, end, end) + ctf_integer(int, uptodate, uptodate) + ctf_integer(u64, root_objectid, + BTRFS_I(page->mapping->host)->root->root_key.objectid) + ) +) +#endif + #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0) || \ LTTNG_SLE_KERNEL_RANGE(4,4,73,5,0,0, 4,4,73,6,0,0) || \ LTTNG_SLE_KERNEL_RANGE(4,4,82,6,0,0, 4,4,82,7,0,0) || \ @@ -619,23 +678,6 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(btrfs__writepage, TP_ARGS(page, inode, wbc) ) -LTTNG_TRACEPOINT_EVENT(btrfs_writepage_end_io_hook, - - TP_PROTO(const struct page *page, u64 start, u64 end, int uptodate), - - TP_ARGS(page, start, end, uptodate), - - TP_FIELDS( - ctf_integer(ino_t, ino, page->mapping->host->i_ino) - ctf_integer(pgoff_t, index, page->index) - ctf_integer(u64, start, start) - ctf_integer(u64, end, end) - ctf_integer(int, uptodate, uptodate) - ctf_integer(u64, root_objectid, - BTRFS_I(page->mapping->host)->root->root_key.objectid) - ) -) - LTTNG_TRACEPOINT_EVENT(btrfs_sync_file, TP_PROTO(const struct file *file, int datasync), @@ -690,23 +732,6 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(btrfs__writepage, TP_ARGS(page, inode, wbc) ) -LTTNG_TRACEPOINT_EVENT(btrfs_writepage_end_io_hook, - - TP_PROTO(struct page *page, u64 start, u64 end, int uptodate), - - TP_ARGS(page, start, end, uptodate), - - TP_FIELDS( - ctf_integer(ino_t, ino, page->mapping->host->i_ino) - ctf_integer(pgoff_t, index, page->index) - ctf_integer(u64, start, start) - ctf_integer(u64, end, end) - ctf_integer(int, uptodate, uptodate) - ctf_integer(u64, root_objectid, - BTRFS_I(page->mapping->host)->root->root_key.objectid) - ) -) - LTTNG_TRACEPOINT_EVENT(btrfs_sync_file, TP_PROTO(struct file *file, int datasync),
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