Hi Valdis, I need to read file inside LSM hook and I can not do it in user space I forgot o mention that same error occurried both in 4.4 and 4.13 kernels What alternative you can recommend to read file in kernel and avoid -EINTR? Is vfs_read() different from kernel_read() ?
ThanX Lev 20.12.2018, 23:09, "[email protected]" <[email protected]>: > On Thu, 20 Dec 2018 13:33:09 +0300, Lev Olshvang said: >> I use kernel_read to read file in chunks of 4K size in a process context >> On several files, like libc, libm, I got -EINTR error. > > What are you trying to accomplish? This is not a recommended way to do things. > >> I do not understand who may interrupt such a small read, I suppose these >> libraries are already mapped in other processes so no real I/O should be >> done. > > That should be a hint.... > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list [email protected] https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
