| 1 | |
| 2 | |
| 3 | * linux/fs/fuse/fuse_sysctl.c
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| 4 | *
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| 5 | * Sysctl interface to fuse parameters
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| 6 |
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| 7 | #include <linux/sysctl.h>
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| 8 |
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| 9 | #include "sysctl.h"
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| 10 | #include "fuse_i.h"
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| 11 |
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| 12 | static struct ctl_table_header *fuse_table_header;
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| 13 |
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| 14 |
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| 15 | static unsigned int sysctl_fuse_max_pages_limit = 65535;
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| 16 |
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| 17 | |
| 18 | * fuse_init_out request timeouts are u16.
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| 19 | * This goes up to ~18 hours, which is plenty for a timeout.
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| 20 |
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| 21 | static unsigned int sysctl_fuse_req_timeout_limit = 65535;
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| 22 |
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| 23 | static const struct ctl_table fuse_sysctl_table[] = {
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| 24 | {
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| 25 | .procname = "max_pages_limit",
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| 26 | .data = &fuse_max_pages_limit,
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| 27 | .maxlen = sizeof(fuse_max_pages_limit),
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| 28 | .mode = 0644,
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| 29 | .proc_handler = proc_douintvec_minmax,
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| 30 | .extra1 = SYSCTL_ONE,
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| 31 | .extra2 = &sysctl_fuse_max_pages_limit,
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| 32 | },
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| 33 | {
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| 34 | .procname = "default_request_timeout",
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| 35 | .data = &fuse_default_req_timeout,
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| 36 | .maxlen = sizeof(fuse_default_req_timeout),
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| 37 | .mode = 0644,
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| 38 | .proc_handler = proc_douintvec_minmax,
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| 39 | .extra1 = SYSCTL_ZERO,
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| 40 | .extra2 = &sysctl_fuse_req_timeout_limit,
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| 41 | },
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| 42 | {
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| 43 | .procname = "max_request_timeout",
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| 44 | .data = &fuse_max_req_timeout,
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| 45 | .maxlen = sizeof(fuse_max_req_timeout),
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| 46 | .mode = 0644,
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| 47 | .proc_handler = proc_douintvec_minmax,
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| 48 | .extra1 = SYSCTL_ZERO,
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| 49 | .extra2 = &sysctl_fuse_req_timeout_limit,
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| 50 | },
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| 51 | };
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| 52 |
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| 53 | int fuse_sysctl_register(void)
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| 54 | {
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| 55 | fuse_table_header = register_sysctl("fs/fuse", fuse_sysctl_table);
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| 56 | if (!fuse_table_header)
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| 57 | return -ENOMEM;
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| 58 | return 0;
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| 59 | }
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| 60 |
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| 61 | void fuse_sysctl_unregister(void)
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| 62 | {
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| 63 | unregister_sysctl_table(fuse_table_header);
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| 64 | fuse_table_header = NULL;
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| 65 | }
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