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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 09:54:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 09:54:46 -0700
commita5ad5742f671de906adbf29fbedf0a04705cebad (patch)
tree88d1a4c18e2025a5a8335dbbc9dea8bebeba5789 /fs/ext4/super.c
parent013b2deba9a6b80ca02f4fafd7dedf875e9b4450 (diff)
parent4fa7252338a56fbc90220e6330f136a379175a7a (diff)
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Merge branch 'akpm' (patches from Andrew)
Merge even more updates from Andrew Morton: - a kernel-wide sweep of show_stack() - pagetable cleanups - abstract out accesses to mmap_sem - prep for mmap_sem scalability work - hch's user acess work Subsystems affected by this patch series: debug, mm/pagemap, mm/maccess, mm/documentation. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (93 commits) include/linux/cache.h: expand documentation over __read_mostly maccess: return -ERANGE when probe_kernel_read() fails x86: use non-set_fs based maccess routines maccess: allow architectures to provide kernel probing directly maccess: move user access routines together maccess: always use strict semantics for probe_kernel_read maccess: remove strncpy_from_unsafe tracing/kprobes: handle mixed kernel/userspace probes better bpf: rework the compat kernel probe handling bpf:bpf_seq_printf(): handle potentially unsafe format string better bpf: handle the compat string in bpf_trace_copy_string better bpf: factor out a bpf_trace_copy_string helper maccess: unify the probe kernel arch hooks maccess: remove probe_read_common and probe_write_common maccess: rename strnlen_unsafe_user to strnlen_user_nofault maccess: rename strncpy_from_unsafe_strict to strncpy_from_kernel_nofault maccess: rename strncpy_from_unsafe_user to strncpy_from_user_nofault maccess: update the top of file comment maccess: clarify kerneldoc comments maccess: remove duplicate kerneldoc comments ...
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a29e8ea1a7ab..c668f6b42374 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -93,11 +93,11 @@ static struct inode *ext4_get_journal_inode(struct super_block *sb,
* i_mmap_rwsem (inode->i_mmap_rwsem)!
*
* page fault path:
- * mmap_sem -> sb_start_pagefault -> i_mmap_sem (r) -> transaction start ->
+ * mmap_lock -> sb_start_pagefault -> i_mmap_sem (r) -> transaction start ->
* page lock -> i_data_sem (rw)
*
* buffered write path:
- * sb_start_write -> i_mutex -> mmap_sem
+ * sb_start_write -> i_mutex -> mmap_lock
* sb_start_write -> i_mutex -> transaction start -> page lock ->
* i_data_sem (rw)
*
@@ -107,7 +107,7 @@ static struct inode *ext4_get_journal_inode(struct super_block *sb,
* i_data_sem (rw)
*
* direct IO:
- * sb_start_write -> i_mutex -> mmap_sem
+ * sb_start_write -> i_mutex -> mmap_lock
* sb_start_write -> i_mutex -> transaction start -> i_data_sem (rw)
*
* writepages: