readahead on ia64

initiate file readahead into page cache

sys_readahead(int fd, loff_t offset, size_t count)
number1216 (0x4c0)
abicommon
entry pointsys_readahead
sinceLinux 5.0 or earlier (5.0 is the first release scanned for ia64)
man pagereadahead(2)
sourceelixir.bootlin.com

Registers

registervalue
r151216, the syscall number
out0int fd
out1loff_t offset
out2size_t count
r8the return value

Then run break 0x100000 to enter the kernel.

The kernel uses r10 to signal an error.

The pipe call returns file descriptors in r8 and r9.

This architecture was removed from the Linux kernel in Linux 6.7. The newest release with a syscall table here is Linux 6.6. 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/ia64/readahead?kernel=all