{"id":2229003,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2229003/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260427154639.180684-11-dhowells@redhat.com/","project":{"id":12,"url":"http://patchwork.ozlabs.org/api/1.1/projects/12/?format=json","name":"Linux CIFS Client","link_name":"linux-cifs-client","list_id":"linux-cifs.vger.kernel.org","list_email":"linux-cifs@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260427154639.180684-11-dhowells@redhat.com>","date":"2026-04-27T15:46:25","name":"[v4,10/22] netfs: Defer the emission of trace_netfs_folio()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"eeae13355e240d14c660beca98208a46de092958","submitter":{"id":59,"url":"http://patchwork.ozlabs.org/api/1.1/people/59/?format=json","name":"David Howells","email":"dhowells@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260427154639.180684-11-dhowells@redhat.com/mbox/","series":[{"id":501682,"url":"http://patchwork.ozlabs.org/api/1.1/series/501682/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501682","date":"2026-04-27T15:46:15","name":"netfs: Miscellaneous fixes","version":4,"mbox":"http://patchwork.ozlabs.org/series/501682/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2229003/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2229003/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-cifs@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n 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in-reply-to:in-reply-to:references:references;\n\tbh=+l6afX5dOckJckSkiMhYLh2ewUrSBegiqJdH6fYSD7g=;\n\tb=LiwTz1tOATf+SablEuotlPoalRIs5gXsIXv38Kd6RYc8KyY9LmRqh3bMqcQ+4Np+XowHs+\n\tggLMZWFMHqkA+B/weXhKlg7OBuFhIXUn9nAiR+9P77CedmfsxO/4AKKdQGcrhvq293WTTh\n\tMXyLbyFB6LWH/L7DQYNAI4HlF1MNfhw=","X-MC-Unique":"Ih5o6OdTN4OYlt2BEEDXww-1","X-Mimecast-MFC-AGG-ID":"Ih5o6OdTN4OYlt2BEEDXww_1777304851","From":"David Howells ","To":"Christian Brauner ","Cc":"David Howells ,\n\tPaulo Alcantara ,\n\tnetfs@lists.linux.dev,\n\tlinux-afs@lists.infradead.org,\n\tlinux-cifs@vger.kernel.org,\n\tceph-devel@vger.kernel.org,\n\tlinux-fsdevel@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tMatthew Wilcox ","Subject":"[PATCH v4 10/22] netfs: Defer the emission of trace_netfs_folio()","Date":"Mon, 27 Apr 2026 16:46:25 +0100","Message-ID":"<20260427154639.180684-11-dhowells@redhat.com>","In-Reply-To":"<20260427154639.180684-1-dhowells@redhat.com>","References":"<20260427154639.180684-1-dhowells@redhat.com>","Precedence":"bulk","X-Mailing-List":"linux-cifs@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.4"},"content":"Change netfs_perform_write() to keep the netfs_folio trace value in a\nvariable and emit it later to make it easier to choose the value displayed.\nThis is a prerequisite for a subsequent patch.\n\nCloses: https://sashiko.dev/#/patchset/20260414082004.3756080-1-dhowells%40redhat.com\nSigned-off-by: David Howells \ncc: Paulo Alcantara \ncc: Matthew Wilcox \ncc: netfs@lists.linux.dev\ncc: linux-fsdevel@vger.kernel.org\n---\n fs/netfs/buffered_write.c | 18 ++++++++++--------\n 1 file changed, 10 insertions(+), 8 deletions(-)","diff":"diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c\nindex fc94eb1ef27b..7ac128d0b4e5 100644\n--- a/fs/netfs/buffered_write.c\n+++ b/fs/netfs/buffered_write.c\n@@ -149,6 +149,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t}\n \n \tdo {\n+\t\tenum netfs_folio_trace trace;\n \t\tstruct netfs_folio *finfo;\n \t\tstruct netfs_group *group;\n \t\tunsigned long long fpos;\n@@ -222,7 +223,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\tif (unlikely(copied == 0))\n \t\t\t\tgoto copy_failed;\n \t\t\tnetfs_set_group(folio, netfs_group);\n-\t\t\ttrace_netfs_folio(folio, netfs_folio_is_uptodate);\n+\t\t\ttrace = netfs_folio_is_uptodate;\n \t\t\tgoto copied;\n \t\t}\n \n@@ -238,7 +239,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\tfolio_zero_segment(folio, offset + copied, flen);\n \t\t\t__netfs_set_group(folio, netfs_group);\n \t\t\tfolio_mark_uptodate(folio);\n-\t\t\ttrace_netfs_folio(folio, netfs_modify_and_clear);\n+\t\t\ttrace = netfs_modify_and_clear;\n \t\t\tgoto copied;\n \t\t}\n \n@@ -256,7 +257,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\t}\n \t\t\t__netfs_set_group(folio, netfs_group);\n \t\t\tfolio_mark_uptodate(folio);\n-\t\t\ttrace_netfs_folio(folio, netfs_whole_folio_modify);\n+\t\t\ttrace = netfs_whole_folio_modify;\n \t\t\tgoto copied;\n \t\t}\n \n@@ -283,7 +284,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\tif (unlikely(copied == 0))\n \t\t\t\tgoto copy_failed;\n \t\t\tnetfs_set_group(folio, netfs_group);\n-\t\t\ttrace_netfs_folio(folio, netfs_just_prefetch);\n+\t\t\ttrace = netfs_just_prefetch;\n \t\t\tgoto copied;\n \t\t}\n \n@@ -297,7 +298,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\tif (offset == 0 && copied == flen) {\n \t\t\t\t__netfs_set_group(folio, netfs_group);\n \t\t\t\tfolio_mark_uptodate(folio);\n-\t\t\t\ttrace_netfs_folio(folio, netfs_streaming_filled_page);\n+\t\t\t\ttrace = netfs_streaming_filled_page;\n \t\t\t\tgoto copied;\n \t\t\t}\n \n@@ -312,7 +313,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\tfinfo->dirty_len = copied;\n \t\t\tfolio_attach_private(folio, (void *)((unsigned long)finfo |\n \t\t\t\t\t\t\t NETFS_FOLIO_INFO));\n-\t\t\ttrace_netfs_folio(folio, netfs_streaming_write);\n+\t\t\ttrace = netfs_streaming_write;\n \t\t\tgoto copied;\n \t\t}\n \n@@ -332,9 +333,9 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\t\t\t\tfolio_detach_private(folio);\n \t\t\t\tfolio_mark_uptodate(folio);\n \t\t\t\tkfree(finfo);\n-\t\t\t\ttrace_netfs_folio(folio, netfs_streaming_cont_filled_page);\n+\t\t\t\ttrace = netfs_streaming_cont_filled_page;\n \t\t\t} else {\n-\t\t\t\ttrace_netfs_folio(folio, netfs_streaming_write_cont);\n+\t\t\t\ttrace = netfs_streaming_write_cont;\n \t\t\t}\n \t\t\tgoto copied;\n \t\t}\n@@ -350,6 +351,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,\n \t\tcontinue;\n \n \tcopied:\n+\t\ttrace_netfs_folio(folio, trace);\n \t\tflush_dcache_folio(folio);\n \n \t\t/* Update the inode size if we moved the EOF marker */\n","prefixes":["v4","10/22"]}