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VFS_TEST_LOCK(9) The Linux VFS VFS_TEST_LOCK(9)

NAME

vfs_test_lock - test file byte range lock

SYNOPSIS

int vfs_test_lock(struct file * filp, struct file_lock * fl);

ARGUMENTS

filp
The file to test lock for
fl
The lock to test; also used to hold result

DESCRIPTION

Returns -ERRNO on failure. Indicates presence of conflicting lock by setting conf->fl_type to something other than F_UNLCK.

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.