readahead on blackfin

initiate file readahead into page cache

sys_readahead(int fd, loff_t offset, size_t count)
number225 (0xe1)
abicommon
entry pointsys_readahead
sinceLinux 3.3 or earlier (3.3 is the first release scanned for blackfin)
man pagereadahead(2)
sourceelixir.bootlin.com

Registers

registervalue
P0225, the syscall number
R0int fd
R1loff_t offset
R2size_t count
R0the return value

Then run excpt 0 to enter the kernel.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/blackfin/readahead?kernel=all