Revision tags: v6.6.25, v6.6.24, v6.6.23, v6.6.16, v6.6.15, v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46 |
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#
d59070d1 |
| 11-Aug-2023 |
Arnd Bergmann <arnd@arndb.de> |
radix tree: remove unused variable
Recent versions of clang warn about an unused variable, though older versions saw the 'slot++' as a use and did not warn:
radix-tree.c:1136:50: error: parameter '
radix tree: remove unused variable
Recent versions of clang warn about an unused variable, though older versions saw the 'slot++' as a use and did not warn:
radix-tree.c:1136:50: error: parameter 'slot' set but not used [-Werror,-Wunused-but-set-parameter]
It's clearly not needed any more, so just remove it.
Link: https://lkml.kernel.org/r/20230811131023.2226509-1-arnd@kernel.org Fixes: 3a08cd52c37c7 ("radix tree: Remove multiorder support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Matthew Wilcox <willy@infradead.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peng Zhang <zhangpeng.00@bytedance.com> Cc: Rong Tao <rongtao@cestc.cn> Cc: Tom Rix <trix@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Revision tags: v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29 |
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bde1597d |
| 16-May-2023 |
Arnd Bergmann <arnd@arndb.de> |
radix-tree: move declarations to header
The xarray.c file contains the only call to radix_tree_node_rcu_free(), and it comes with its own extern declaration for it. This means the function definiti
radix-tree: move declarations to header
The xarray.c file contains the only call to radix_tree_node_rcu_free(), and it comes with its own extern declaration for it. This means the function definition causes a missing-prototype warning:
lib/radix-tree.c:288:6: error: no previous prototype for 'radix_tree_node_rcu_free' [-Werror=missing-prototypes]
Instead, move the declaration for this function to a new header that can be included by both, and do the same for the radix_tree_node_cachep variable that has the same underlying problem but does not cause a warning with gcc.
[zhangpeng.00@bytedance.com: fix building radix tree test suite] Link: https://lkml.kernel.org/r/20230521095450.21332-1-zhangpeng.00@bytedance.com Link: https://lkml.kernel.org/r/20230516194212.548910-1-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peng Zhang <zhangpeng.00@bytedance.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Revision tags: v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78 |
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#
fc0e7387 |
| 09-Nov-2022 |
Rong Tao <rongtao@cestc.cn> |
lib/radix-tree.c: fix uninitialized variable compilation warning
We need to set an initial value for offset to eliminate compilation warning.
How to reproduce warning:
$ make -C tools/testing/radi
lib/radix-tree.c: fix uninitialized variable compilation warning
We need to set an initial value for offset to eliminate compilation warning.
How to reproduce warning:
$ make -C tools/testing/radix-tree radix-tree.c: In function `radix_tree_tag_clear': radix-tree.c:1046:17: warning: `offset' may be used uninitialized in this function [-Wmaybe-uninitialized] 1046 | node_tag_clear(root, parent, tag, offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Link: https://lkml.kernel.org/r/tencent_DF74099967595DCEA93CBDC28D062026180A@qq.com Signed-off-by: Rong Tao <rongtao@cestc.cn> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Revision tags: v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71, v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51 |
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cda83bb8 |
| 25-Jun-2022 |
wuchi <wuchi.zero@gmail.com> |
lib/radix-tree: remove unused argument of insert_entries
insert_entries() doesn't use the 'bool replace' argument, and the function is only used locally, remove the argument.
The historical context
lib/radix-tree: remove unused argument of insert_entries
insert_entries() doesn't use the 'bool replace' argument, and the function is only used locally, remove the argument.
The historical context of the unused argument is as follow:
2: commit <3a08cd52c37c79> (radix tree: Remove multiorder support) Remove the code related to macro CONFIG_RADIX_TREE_MULTIORDER to convert to the xArray. Without the macro, there is no need to retain the argument.
1: commit <175542f575723e> (radix-tree: add radix_tree_join) Add insert_entries(..., bool replace) function, depending on the macro CONFIG_RADIX_TREE_MULTIORDER definition, the implementation is different. Notice that the implementation without the macro doesn't use the argument.
[Matthew Wilcox: add historical context for argument]
Link: https://lkml.kernel.org/r/20220625135324.72574-1-wuchi.zero@gmail.com Signed-off-by: wuchi <wuchi.zero@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Revision tags: v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17, v5.4.173, v5.15.16, v5.15.15, v5.16, v5.15.10, v5.15.9, v5.15.8, v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7, v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51, v5.10.50, v5.10.49, v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32 |
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#
c95c2d32 |
| 16-Apr-2021 |
Randy Dunlap <rdunlap@infradead.org> |
lib: remove "expecting prototype" kernel-doc warnings
Fix various kernel-doc warnings in lib/ due to missing or erroneous function names.
Add kernel-doc for some function parameters that was missin
lib: remove "expecting prototype" kernel-doc warnings
Fix various kernel-doc warnings in lib/ due to missing or erroneous function names.
Add kernel-doc for some function parameters that was missing. Use kernel-doc "Return:" notation in earlycpio.c.
Quietens the following warnings:
lib/earlycpio.c:61: warning: expecting prototype for cpio_data find_cpio_data(). Prototype was for find_cpio_data() instead
lib/lru_cache.c:640: warning: expecting prototype for lc_dump(). Prototype was for lc_seq_dump_details() instead lru_cache.c:90: warning: Function parameter or member 'cache' not described in 'lc_create'
lib/parman.c:368: warning: expecting prototype for parman_item_del(). Prototype was for parman_item_remove() instead parman.c:309: warning: Excess function parameter 'prority' description in 'parman_prio_init'
lib/radix-tree.c:703: warning: expecting prototype for __radix_tree_insert(). Prototype was for radix_tree_insert() instead radix-tree.c:180: warning: Excess function parameter 'addr' description in 'radix_tree_find_next_bit' radix-tree.c:180: warning: Excess function parameter 'size' description in 'radix_tree_find_next_bit' radix-tree.c:931: warning: Function parameter or member 'iter' not described in 'radix_tree_iter_replace'
Link: https://lkml.kernel.org/r/20210411221756.15461-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Philipp Reisner <philipp.reisner@linbit.com> Cc: Lars Ellenberg <lars.ellenberg@linbit.com> Cc: Jiri Pirko <jiri@nvidia.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Revision tags: v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14, v5.10, v5.8.17, v5.8.16 |
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#
e0656501 |
| 15-Oct-2020 |
Randy Dunlap <rdunlap@infradead.org> |
lib: radix-tree: delete duplicated words
Drop the repeated word "be".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml
lib: radix-tree: delete duplicated words
Drop the repeated word "be".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200823040508.26086-1-rdunlap@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Revision tags: v5.8.15, v5.9, v5.8.14, v5.8.13, v5.8.12, v5.8.11, v5.8.10, v5.8.9, v5.8.8, v5.8.7, v5.8.6, v5.4.62, v5.8.5, v5.8.4, v5.4.61, v5.8.3, v5.4.60, v5.8.2, v5.4.59, v5.8.1, v5.4.58, v5.4.57, v5.4.56, v5.8, v5.7.12, v5.4.55, v5.7.11, v5.4.54, v5.7.10, v5.4.53, v5.4.52, v5.7.9, v5.7.8, v5.4.51, v5.4.50, v5.7.7, v5.4.49, v5.7.6, v5.7.5, v5.4.48, v5.7.4, v5.7.3, v5.4.47 |
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#
dd841a74 |
| 14-Jun-2020 |
Matthew Wilcox (Oracle) <willy@infradead.org> |
radix tree test suite: Fix compilation
Introducing local_lock broke compilation; fix it all up.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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Revision tags: v5.4.46, v5.7.2, v5.4.45, v5.7.1 |
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3f649ab7 |
| 03-Jun-2020 |
Kees Cook <keescook@chromium.org> |
treewide: Remove uninitialized_var() usage
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused vari
treewide: Remove uninitialized_var() usage
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused variable"). If the compiler thinks it is uninitialized, either simply initialize the variable or make compiler changes.
In preparation for removing[2] the[3] macro[4], remove all remaining needless uses with the following script:
git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \ xargs perl -pi -e \ 's/\buninitialized_var\(([^\)]+)\)/\1/g; s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'
drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid pathological white-space.
No outstanding warnings were found building allmodconfig with GCC 9.3.0 for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64, alpha, and m68k.
[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/ [2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/ [3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/ [4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/
Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5 Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs Signed-off-by: Kees Cook <keescook@chromium.org>
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Revision tags: v5.4.44, v5.7 |
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#
cfa6705d |
| 27-May-2020 |
Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
radix-tree: Use local_lock for protection
The radix-tree and idr preload mechanisms use preempt_disable() to protect the complete operation between xxx_preload() and xxx_preload_end().
As the code
radix-tree: Use local_lock for protection
The radix-tree and idr preload mechanisms use preempt_disable() to protect the complete operation between xxx_preload() and xxx_preload_end().
As the code inside the preempt disabled section acquires regular spinlocks, which are converted to 'sleeping' spinlocks on a PREEMPT_RT kernel and eventually calls into a memory allocator, this conflicts with the RT semantics.
Convert it to a local_lock which allows RT kernels to substitute them with a real per CPU lock. On non RT kernels this maps to preempt_disable() as before, but provides also lockdep coverage of the critical region. No functional change.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20200527201119.1692513-3-bigeasy@linutronix.de
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Revision tags: v5.4.43, v5.4.42, v5.4.41, v5.4.40, v5.4.39, v5.4.38, v5.4.37, v5.4.36, v5.4.35, v5.4.34, v5.4.33, v5.4.32, v5.4.31, v5.4.30, v5.4.29, v5.6, v5.4.28, v5.4.27, v5.4.26, v5.4.25, v5.4.24, v5.4.23, v5.4.22, v5.4.21, v5.4.20, v5.4.19, v5.4.18, v5.4.17, v5.4.16, v5.5, v5.4.15, v5.4.14 |
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3a00e7c4 |
| 21-Jan-2020 |
Alex Shi <alex.shi@linux.alibaba.com> |
ida: remove abandoned macros
3 IDA_ started macros aren't used from commit f32f004cddf8 ("ida: Convert to XArray"). so better to remove them.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Si
ida: remove abandoned macros
3 IDA_ started macros aren't used from commit f32f004cddf8 ("ida: Convert to XArray"). so better to remove them.
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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Revision tags: v5.4.13, v5.4.12, v5.4.11, v5.4.10, v5.4.9, v5.4.8, v5.4.7, v5.4.6, v5.4.5, v5.4.4, v5.4.3, v5.3.15, v5.4.2, v5.4.1, v5.3.14, v5.4, v5.3.13, v5.3.12, v5.3.11, v5.3.10, v5.3.9 |
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b7e9728f |
| 01-Nov-2019 |
Matthew Wilcox (Oracle) <willy@infradead.org> |
idr: Fix idr_alloc_u32 on 32-bit systems
Attempting to allocate an entry at 0xffffffff when one is already present would succeed in allocating one at 2^32, which would confuse everything. Return -E
idr: Fix idr_alloc_u32 on 32-bit systems
Attempting to allocate an entry at 0xffffffff when one is already present would succeed in allocating one at 2^32, which would confuse everything. Return -ENOSPC in this case, as expected.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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Revision tags: v5.3.8, v5.3.7, v5.3.6, v5.3.5, v5.3.4, v5.3.3, v5.3.2, v5.3.1, v5.3, v5.2.14, v5.3-rc8, v5.2.13, v5.2.12, v5.2.11, v5.2.10, v5.2.9, v5.2.8, v5.2.7, v5.2.6, v5.2.5, v5.2.4, v5.2.3, v5.2.2, v5.2.1, v5.2, v5.1.16, v5.1.15, v5.1.14, v5.1.13, v5.1.12, v5.1.11, v5.1.10, v5.1.9, v5.1.8, v5.1.7, v5.1.6 |
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de6cc651 |
| 27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify it under the terms of th
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 153
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 77 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.837555891@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.1.5, v5.1.4, v5.1.3, v5.1.2, v5.1.1, v5.0.14, v5.1, v5.0.13, v5.0.12, v5.0.11, v5.0.10, v5.0.9, v5.0.8, v5.0.7, v5.0.6, v5.0.5, v5.0.4, v5.0.3, v4.19.29, v5.0.2, v4.19.28, v5.0.1, v4.19.27, v5.0, v4.19.26, v4.19.25, v4.19.24, v4.19.23, v4.19.22, v4.19.21, v4.19.20, v4.19.19, v4.19.18, v4.19.17, v4.19.16, v4.19.15, v4.19.14, v4.19.13, v4.19.12, v4.19.11, v4.19.10, v4.19.9, v4.19.8 |
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eff3860b |
| 06-Dec-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Don't return retry entries from lookup
Commit 66ee620f06f9 ("idr: Permit any valid kernel pointer to be stored") changed the radix tree lookup so that it stops when reaching the bottom o
radix tree: Don't return retry entries from lookup
Commit 66ee620f06f9 ("idr: Permit any valid kernel pointer to be stored") changed the radix tree lookup so that it stops when reaching the bottom of the tree. However, the condition was added in the wrong place, making it possible to return retry entries to the caller. Reorder the tests to check for the retry entry before checking whether we're at the bottom of the tree. The retry entry should never be found in the tree root, so it's safe to defer the check until the end of the loop.
Add a regression test to the test-suite to be sure this doesn't come back.
Fixes: 66ee620f06f9 ("idr: Permit any valid kernel pointer to be stored") Reported-by: Greg Kurz <groug@kaod.org> Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.19.7, v4.19.6, v4.19.5, v4.19.4, v4.18.20, v4.19.3, v4.18.19, v4.19.2, v4.18.18, v4.18.17, v4.19.1, v4.19, v4.18.16, v4.18.15, v4.18.14, v4.18.13, v4.18.12, v4.18.11, v4.18.10 |
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3a08cd52 |
| 22-Sep-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Remove multiorder support
All users have now been converted to the XArray. Removing the support reduces code size and ensures new users will use the XArray instead.
Signed-off-by: Matt
radix tree: Remove multiorder support
All users have now been converted to the XArray. Removing the support reduces code size and ensures new users will use the XArray instead.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.18.9, v4.18.7, v4.18.6, v4.18.5, v4.17.18, v4.18.4 |
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372266ba |
| 18-Aug-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree test suite: Convert tag_tagged_items to XArray
The tag_tagged_items() function is supposed to test the page-writeback tagging code. Since that has been converted to the XArray, there's n
radix tree test suite: Convert tag_tagged_items to XArray
The tag_tagged_items() function is supposed to test the page-writeback tagging code. Since that has been converted to the XArray, there's not much point in testing the radix tree's tagging code. This requires using the pthread mutex embedded in the xarray instead of an external lock, so remove the pthread mutexes which protect xarrays/radix trees. Also remove radix_tree_iter_tag_set() as this was the last user.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.18.3, v4.17.17, v4.18.2, v4.17.16, v4.17.15, v4.18.1, v4.18, v4.17.14, v4.17.13, v4.17.12, v4.17.11, v4.17.10, v4.17.9, v4.17.8, v4.17.7, v4.17.6, v4.17.5, v4.17.4, v4.17.3, v4.17.2, v4.17.1, v4.17 |
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adb9d9c4 |
| 09-Apr-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Remove radix_tree_clear_tags
The page cache was the only user of this interface and it has now been converted to the XArray. Transform the test into a test of xas_init_marks().
Signed-
radix tree: Remove radix_tree_clear_tags
The page cache was the only user of this interface and it has now been converted to the XArray. Transform the test into a test of xas_init_marks().
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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8cf2f984 |
| 19-May-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Remove radix_tree_maybe_preload_order
This function was only used by the page cache which is now converted to the XArray.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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2956c664 |
| 19-May-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Remove split/join code
radix_tree_split and radix_tree_join were never used upstream. Remove them; if they're needed in future they will be replaced by XArray equivalents.
Signed-off-b
radix tree: Remove split/join code
radix_tree_split and radix_tree_join were never used upstream. Remove them; if they're needed in future they will be replaced by XArray equivalents.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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1cf56f9d |
| 09-Apr-2018 |
Matthew Wilcox <willy@infradead.org> |
radix tree: Remove radix_tree_update_node_t
The only user of this functionality was the workingset code, and it's now been converted to the XArray. Remove __radix_tree_delete_node() entirely as it
radix tree: Remove radix_tree_update_node_t
The only user of this functionality was the workingset code, and it's now been converted to the XArray. Remove __radix_tree_delete_node() entirely as it was also only used by the workingset code.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.16, v4.15 |
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7b8d046f |
| 01-Dec-2017 |
Matthew Wilcox <willy@infradead.org> |
shmem: Convert shmem_alloc_hugepage to XArray
xa_find() is a slightly easier API to use than radix_tree_gang_lookup_slot() because it contains its own RCU locking. This commit removes the last user
shmem: Convert shmem_alloc_hugepage to XArray
xa_find() is a slightly easier API to use than radix_tree_gang_lookup_slot() because it contains its own RCU locking. This commit removes the last user of radix_tree_gang_lookup_slot() so remove the function too.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.13.16 |
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74d60958 |
| 17-Nov-2017 |
Matthew Wilcox <willy@infradead.org> |
page cache: Add and replace pages using the XArray
Use the XArray APIs to add and replace pages in the page cache. This removes two uses of the radix tree preload API and is significantly shorter c
page cache: Add and replace pages using the XArray
Use the XArray APIs to add and replace pages in the page cache. This removes two uses of the radix tree preload API and is significantly shorter code. It also removes the last user of __radix_tree_create() outside radix-tree.c itself, so make it static.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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f32f004c |
| 04-Jul-2018 |
Matthew Wilcox <willy@infradead.org> |
ida: Convert to XArray
Use the XA_TRACK_FREE ability to track which entries have a free bit, similarly to how it uses the radix tree's IDR_FREE tag. This eliminates the per-cpu ida_bitmap preload,
ida: Convert to XArray
Use the XA_TRACK_FREE ability to track which entries have a free bit, similarly to how it uses the radix tree's IDR_FREE tag. This eliminates the per-cpu ida_bitmap preload, and fixes the memory consumption regression I introduced when making the IDR able to store any pointer.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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Revision tags: v4.14 |
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58d6ea30 |
| 10-Nov-2017 |
Matthew Wilcox <willy@infradead.org> |
xarray: Add XArray unconditional store operations
xa_store() differs from radix_tree_insert() in that it will overwrite an existing element in the array rather than returning an error. This is the
xarray: Add XArray unconditional store operations
xa_store() differs from radix_tree_insert() in that it will overwrite an existing element in the array rather than returning an error. This is the behaviour which most users want, and those that want more complex behaviour generally want to use the xas family of routines anyway.
For memory allocation, xa_store() will first attempt to request memory from the slab allocator; if memory is not immediately available, it will drop the xa_lock and allocate memory, keeping a pointer in the xa_state. It does not use the per-CPU cache, although those will continue to exist until all radix tree users are converted to the xarray.
This patch also includes xa_erase() and __xa_erase() for a streamlined way to store NULL. Since there is no need to allocate memory in order to store a NULL in the XArray, we do not need to trouble the user with deciding what memory allocation flags to use.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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ad3d6c72 |
| 07-Nov-2017 |
Matthew Wilcox <willy@infradead.org> |
xarray: Add XArray load operation
The xa_load function brings with it a lot of infrastructure; xa_empty(), xa_is_err(), and large chunks of the XArray advanced API that are used to implement xa_load
xarray: Add XArray load operation
The xa_load function brings with it a lot of infrastructure; xa_empty(), xa_is_err(), and large chunks of the XArray advanced API that are used to implement xa_load.
As the test-suite demonstrates, it is possible to use the XArray functions on a radix tree. The radix tree functions depend on the GFP flags being stored in the root of the tree, so it's not possible to use the radix tree functions on an XArray.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
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01959dfe |
| 09-Nov-2017 |
Matthew Wilcox <willy@infradead.org> |
xarray: Define struct xa_node
This is a direct replacement for struct radix_tree_node. A couple of struct members have changed name, so convert those. Use a #define so that radix tree users contin
xarray: Define struct xa_node
This is a direct replacement for struct radix_tree_node. A couple of struct members have changed name, so convert those. Use a #define so that radix tree users continue to work without change.
Signed-off-by: Matthew Wilcox <willy@infradead.org> Reviewed-by: Josef Bacik <jbacik@fb.com>
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