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Searched refs:zram (Results 1 – 23 of 23) sorted by relevance

/linux/drivers/block/zram/
H A Dzram_drv.c58 static void slot_free(struct zram *zram, u32 index);
59 #define slot_dep_map(zram, index) (&(zram)->table[(index)].dep_map) argument
61 static void slot_lock_init(struct zram *zram, u32 index) in slot_lock_init() argument
65 lockdep_init_map(slot_dep_map(zram, index), "zram->table[index].lock", in slot_lock_init()
81 static __must_check bool slot_trylock(struct zram *zram, u32 index) in slot_trylock() argument
83 unsigned long *lock = &zram->table[index].__lock; in slot_trylock()
86 mutex_acquire(slot_dep_map(zram, index), 0, 1, _RET_IP_); in slot_trylock()
87 lock_acquired(slot_dep_map(zram, index), _RET_IP_); in slot_trylock()
94 static void slot_lock(struct zram *zram, u32 index) in slot_lock() argument
96 unsigned long *lock = &zram->table[index].__lock; in slot_lock()
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H A DMakefile3 zram-y := zcomp.o zram_drv.o
5 zram-$(CONFIG_ZRAM_BACKEND_LZO) += backend_lzorle.o backend_lzo.o
6 zram-$(CONFIG_ZRAM_BACKEND_LZ4) += backend_lz4.o
7 zram-$(CONFIG_ZRAM_BACKEND_LZ4HC) += backend_lz4hc.o
8 zram-$(CONFIG_ZRAM_BACKEND_ZSTD) += backend_zstd.o
9 zram-$(CONFIG_ZRAM_BACKEND_DEFLATE) += backend_deflate.o
10 zram-$(CONFIG_ZRAM_BACKEND_842) += backend_842.o
12 obj-$(CONFIG_ZRAM) += zram.o
H A DKconfig15 See Documentation/admin-guide/blockdev/zram.rst for more information.
61 prompt "Default zram compressor"
111 This lets zram entries (incompressible or idle pages) be written
119 See Documentation/admin-guide/blockdev/zram.rst for more information.
122 bool "Track access time of zram entries"
125 With this feature zram tracks access time of every stored
136 /sys/kernel/debug/zram/zramX/block_state.
138 See Documentation/admin-guide/blockdev/zram.rst for more information.
H A Dzram_drv.h108 struct zram { struct
/linux/tools/testing/selftests/zram/
H A Dzram_lib.sh52 swapoff /dev/zram$i
56 umount /dev/zram$i
60 echo 1 > /sys/block/zram${i}/reset
61 rm -rf zram$i
66 echo $i > /sys/class/zram-control/hot_remove
71 rmmod zram > /dev/null 2>&1
83 dev_start=$(ls /dev/zram* | wc -w)
88 cat /sys/class/zram-control/hot_add > /dev/null
97 modprobe zram num_devices=$dev_num
100 rmmod zram > /dev/null 2>&1
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H A DREADME1 zram: Compressed RAM based block devices
5 The zram module creates RAM based block devices named /dev/zram<id>
11 Statistics for individual zram devices are exported through sysfs nodes at
12 /sys/block/zram<id>/
22 zram.sh: For sanity check of CONFIG_ZRAM and to run zram01 and zram02
39 kernel-source-tree/Documentation/admin-guide/blockdev/zram.rst
H A DMakefile4 TEST_PROGS := zram.sh
H A Dzram01.sh40 dd conv=notrunc if=/dev/zero of=zram${i}/file \
/linux/Documentation/ABI/testing/
H A Dsysfs-block-zram1 What: /sys/block/zram<id>/disksize
10 What: /sys/block/zram<id>/initstate
17 What: /sys/block/zram<id>/reset
25 What: /sys/block/zram<id>/comp_algorithm
33 What: /sys/block/zram<id>/mem_used_max
38 the counter of maximum memory zram have consumed to store
43 What: /sys/block/zram<id>/mem_limit
52 What: /sys/block/zram<id>/compact
60 What: /sys/block/zram<id>/io_stat
69 What: /sys/block/zram<id>/mm_stat
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H A Dsysfs-class-zram1 What: /sys/class/zram-control/
6 The zram-control/ class sub-directory belongs to zram
9 What: /sys/class/zram-control/hot_add
14 RO attribute. Read operation will cause zram to add a new
16 use /dev/zram<id>), or error code.
18 What: /sys/class/zram-control/hot_remove
/linux/Documentation/admin-guide/blockdev/
H A Dzram.rst2 zram: Compressed RAM-based block devices
8 The zram module creates RAM-based block devices named /dev/zram<id>
14 Statistics for individual zram devices are exported through sysfs nodes at
15 /sys/block/zram<id>/
20 There are several ways to configure and manage zram device(-s):
22 a) using zram and zram_control sysfs attributes
25 In this document we will describe only 'manual' zram configuration steps,
26 IOW, zram and zram_control sysfs attributes.
30 that zram maintainers do not develop/maintain util-linux or zramctl, should
33 Following shows a typical sequence of steps for using zram.
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H A Dindex.rst15 zram
/linux/Documentation/mm/
H A Dzsmalloc.rst5 This allocator is designed for use with zram. Thus, the allocator is
225 zram as a build artifacts storage (Linux kernel compilation).
236 zram mm_stat:::
250 zram mm_stat:::
/linux/Documentation/translations/zh_CN/mm/
H A Dzsmalloc.rst13 这个分配器是为与zram一起使用而设计的。因此，该分配器应该在低内存条件下工作良好。特别是，
/linux/drivers/block/
H A DMakefile34 obj-$(CONFIG_ZRAM) += zram/
H A DKconfig109 source "drivers/block/zram/Kconfig"
/linux/tools/testing/selftests/
H A DMakefile133 TARGETS += zram
/linux/Documentation/staging/
H A Dlzo.rst88 common case for zram. This modifies the bitstream in a backwards compatible way
/linux/Documentation/
H A D.renames.txt117 blockdev/zram admin-guide/blockdev/zram
/linux/Documentation/admin-guide/sysctl/
H A Dvm.rst1000 For in-memory swap, like zram or zswap, as well as hybrid setups that
/linux/mm/
H A DKconfig133 comment "Zsmalloc is a common backend allocator for zswap & zram"
/linux/
H A DCREDITS1533 D: zsmalloc memory allocator and zram block device driver
H A DMAINTAINERS29159 F: Documentation/admin-guide/blockdev/zram.rst
29160 F: drivers/block/zram/