sys/linux: add description for fsinfo

Added the description for the new fsinfo sys call (currently in
linux-next). Details about fsinfo can be seen in
https://lkml.kernel.org/linux-fsdevel/158454408854.2864823.5910520544515668590.stgit@warthog.procyon.org.uk/.

7 files changed, 187 insertions, 0 deletions

diff --git a/sys/linux/sys.txt b/sys/linux/sys.txt
index 64a69e581..6169e77ff 100644
--- a/sys/linux/sys.txt
+++ b/sys/linux/sys.txt
@@ -52,6 +52,7 @@ include <uapi/linux/capability.h>
 include <uapi/linux/seccomp.h>
 include <uapi/linux/suspend_ioctls.h>
 include <kernel/sched/sched.h>
+include <uapi/linux/fsinfo.h>
 
 resource fd[int32]: -1
 resource fd_dir[fd]: AT_FDCWD
@@ -361,6 +362,7 @@ sysfs$2(option const[2], fsindex intptr, fsname buffer[out])
 sysfs$3(option const[3])
 statfs(path ptr[in, filename], buf buffer[out])
 fstatfs(fd fd, buf buffer[out])
+fsinfo(dfd fd_dir, path ptr[in, filename], params ptr[in, fsinfo_params], params_size bytesize[params], buf buffer[out], buffer_size bytesize[buf])
 
 uselib(lib ptr[in, filename])
 init_module(mod ptr[in, string], len len[mod], args ptr[in, string])
@@ -861,6 +863,15 @@ sched_attr {
 	sched_util_max	int32
 }
 
+fsinfo_params {
+	resolve_flags	flags[resolve_flags, int64]
+	at_flags	flags[at_flags, int32]
+	flags		flags[fsinfo_flags, int32]
+	request		flags[fsinfo_attr_flags, int32]
+	Nth		int32
+	Mth		int32
+}
+
 sched_policy = SCHED_NORMAL, SCHED_FIFO, SCHED_RR, SCHED_BATCH, SCHED_IDLE, SCHED_DEADLINE
 sched_attr_flags = SCHED_FLAG_RESET_ON_FORK, SCHED_FLAG_RECLAIM, SCHED_FLAG_DL_OVERRUN, SCHED_FLAG_KEEP_POLICY, SCHED_FLAG_KEEP_PARAMS, SCHED_FLAG_UTIL_CLAMP_MIN, SCHED_FLAG_UTIL_CLAMP_MAX, SCHED_FLAG_SUGOV
 
@@ -983,6 +994,8 @@ fiemap_extent_flags = FIEMAP_EXTENT_LAST, FIEMAP_EXTENT_UNKNOWN, FIEMAP_EXTENT_D
 getrandom_flags = GRND_NONBLOCK, GRND_RANDOM
 clone_flags = CLONE_VM, CLONE_FS, CLONE_FILES, CLONE_SIGHAND, CLONE_PTRACE, CLONE_VFORK, CLONE_PARENT, CLONE_THREAD, CLONE_NEWNS, CLONE_SYSVSEM, CLONE_SETTLS, CLONE_PARENT_SETTID, CLONE_CHILD_CLEARTID, CLONE_UNTRACED, CLONE_CHILD_SETTID, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC, CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_IO, CLONE_PIDFD, CLONE_NEWTIME
 ptrace_peeksiginfo_flags = PTRACE_PEEKSIGINFO_SHARED
+fsinfo_flags = FSINFO_FLAGS_QUERY_MASK, FSINFO_FLAGS_QUERY_PATH, FSINFO_FLAGS_QUERY_FD, FSINFO_FLAGS_QUERY_MOUNT
+fsinfo_attr_flags = FSINFO_ATTR_STATFS, FSINFO_ATTR_IDS, FSINFO_ATTR_LIMITS, FSINFO_ATTR_SUPPORTS, FSINFO_ATTR_TIMESTAMP_INFO, FSINFO_ATTR_VOLUME_ID, FSINFO_ATTR_VOLUME_UUID, FSINFO_ATTR_VOLUME_NAME, FSINFO_ATTR_FEATURES, FSINFO_ATTR_SOURCE, FSINFO_ATTR_CONFIGURATION, FSINFO_ATTR_FS_STATISTICS, FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO, FSINFO_ATTR_FSINFO_ATTRIBUTES, FSINFO_ATTR_MOUNT_INFO, FSINFO_ATTR_MOUNT_PATH, FSINFO_ATTR_MOUNT_POINT, FSINFO_ATTR_MOUNT_POINT_FULL, FSINFO_ATTR_MOUNT_TOPOLOGY, FSINFO_ATTR_MOUNT_CHILDREN, FSINFO_ATTR_MOUNT_ALL, FSINFO_ATTR_AFS_CELL_NAME, FSINFO_ATTR_AFS_SERVER_NAME, FSINFO_ATTR_AFS_SERVER_ADDRESSES
 
 # adjtimex flags.
 _ = STA_PLL, STA_PPSFREQ, STA_PPSTIME, STA_FLL, STA_INS, STA_DEL, STA_UNSYNC, STA_FREQHOLD, STA_PPSSIGNAL, STA_PPSJITTER, STA_PPSWANDER, STA_PPSERROR, STA_CLOCKERR, STA_NANO, STA_MODE, STA_CLK, STA_RONLY
diff --git a/sys/linux/sys_386.const b/sys/linux/sys_386.const
index f34d4b44f..3195e8b24 100644
--- a/sys/linux/sys_386.const
+++ b/sys/linux/sys_386.const
@@ -108,6 +108,34 @@ FIONBIO = 21537
 FIONCLEX = 21584
 FIOQSIZE = 21600
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 55
 __NR_fdatasync = 148
 __NR_finit_module = 350
 __NR_flock = 143
+__NR_fsinfo = 442
 __NR_fstat = 108
 __NR_fstat64 = 197
 __NR_fstatat64 = 300
diff --git a/sys/linux/sys_amd64.const b/sys/linux/sys_amd64.const
index a2d39af2a..eaa7baa15 100644
--- a/sys/linux/sys_amd64.const
+++ b/sys/linux/sys_amd64.const
@@ -108,6 +108,34 @@ FIONBIO = 21537
 FIONCLEX = 21584
 FIOQSIZE = 21600
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 72
 __NR_fdatasync = 75
 __NR_finit_module = 313
 __NR_flock = 73
+__NR_fsinfo = 442
 __NR_fstat = 5
 # __NR_fstat64 is not set
 # __NR_fstatat64 is not set
diff --git a/sys/linux/sys_arm.const b/sys/linux/sys_arm.const
index 4b31a92c0..d47387b66 100644
--- a/sys/linux/sys_arm.const
+++ b/sys/linux/sys_arm.const
@@ -108,6 +108,34 @@ FIONBIO = 21537
 FIONCLEX = 21584
 FIOQSIZE = 21598
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 55
 __NR_fdatasync = 148
 __NR_finit_module = 379
 __NR_flock = 143
+__NR_fsinfo = 442
 __NR_fstat = 108
 __NR_fstat64 = 197
 __NR_fstatat64 = 327
diff --git a/sys/linux/sys_arm64.const b/sys/linux/sys_arm64.const
index b606c52f6..194b6ff6b 100644
--- a/sys/linux/sys_arm64.const
+++ b/sys/linux/sys_arm64.const
@@ -108,6 +108,34 @@ FIONBIO = 21537
 FIONCLEX = 21584
 FIOQSIZE = 21600
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 25
 __NR_fdatasync = 83
 __NR_finit_module = 273
 __NR_flock = 32
+__NR_fsinfo = 442
 __NR_fstat = 80
 # __NR_fstat64 is not set
 # __NR_fstatat64 is not set
diff --git a/sys/linux/sys_mips64le.const b/sys/linux/sys_mips64le.const
index a52b523e0..23091c93d 100644
--- a/sys/linux/sys_mips64le.const
+++ b/sys/linux/sys_mips64le.const
@@ -108,6 +108,34 @@ FIONBIO = 26238
 FIONCLEX = 26114
 FIOQSIZE = 26239
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 5070
 __NR_fdatasync = 5073
 __NR_finit_module = 5307
 __NR_flock = 5071
+__NR_fsinfo = 5442
 __NR_fstat = 5005
 # __NR_fstat64 is not set
 # __NR_fstatat64 is not set
diff --git a/sys/linux/sys_ppc64le.const b/sys/linux/sys_ppc64le.const
index 1c95fe8d4..c783a042a 100644
--- a/sys/linux/sys_ppc64le.const
+++ b/sys/linux/sys_ppc64le.const
@@ -108,6 +108,34 @@ FIONBIO = 2147772030
 FIONCLEX = 536897026
 FIOQSIZE = 1074292352
 FITHAW = 3221510264
+FSINFO_ATTR_AFS_CELL_NAME = 768
+FSINFO_ATTR_AFS_SERVER_ADDRESSES = 770
+FSINFO_ATTR_AFS_SERVER_NAME = 769
+FSINFO_ATTR_CONFIGURATION = 10
+FSINFO_ATTR_FEATURES = 8
+FSINFO_ATTR_FSINFO_ATTRIBUTES = 257
+FSINFO_ATTR_FSINFO_ATTRIBUTE_INFO = 256
+FSINFO_ATTR_FS_STATISTICS = 11
+FSINFO_ATTR_IDS = 1
+FSINFO_ATTR_LIMITS = 2
+FSINFO_ATTR_MOUNT_ALL = 518
+FSINFO_ATTR_MOUNT_CHILDREN = 517
+FSINFO_ATTR_MOUNT_INFO = 512
+FSINFO_ATTR_MOUNT_PATH = 513
+FSINFO_ATTR_MOUNT_POINT = 514
+FSINFO_ATTR_MOUNT_POINT_FULL = 515
+FSINFO_ATTR_MOUNT_TOPOLOGY = 516
+FSINFO_ATTR_SOURCE = 9
+FSINFO_ATTR_STATFS = 0
+FSINFO_ATTR_SUPPORTS = 3
+FSINFO_ATTR_TIMESTAMP_INFO = 4
+FSINFO_ATTR_VOLUME_ID = 5
+FSINFO_ATTR_VOLUME_NAME = 7
+FSINFO_ATTR_VOLUME_UUID = 6
+FSINFO_FLAGS_QUERY_FD = 1
+FSINFO_FLAGS_QUERY_MASK = 7
+FSINFO_FLAGS_QUERY_MOUNT = 2
+FSINFO_FLAGS_QUERY_PATH = 0
 F_ADD_SEALS = 1033
 F_DUPFD = 0
 F_DUPFD_CLOEXEC = 1030
@@ -588,6 +616,7 @@ __NR_fcntl = 55
 __NR_fdatasync = 148
 __NR_finit_module = 353
 __NR_flock = 143
+__NR_fsinfo = 442
 __NR_fstat = 108
 # __NR_fstat64 is not set
 # __NR_fstatat64 is not set