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Linux: use filemap_range_has_page()

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As of the 4.13 kernel filemap_range_has_page() can be used to
check if there is a page mapped in a given file range.  When
available this interface should be used which eliminates the
need for the zp->z_is_mapped boolean.

Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #14493
This commit is contained in:
Brian Behlendorf
2023-02-14 11:04:34 -08:00
committed by GitHub
parent ab672133a9
commit 3fc92adc40
11 changed files with 65 additions and 17 deletions
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module/os/linux/zfs/zfs_vnops_os.c
+3 -2
View File
@@ -987,7 +987,7 @@ top:
mutex_enter(&zp->z_lock);
may_delete_now = atomic_read(&ZTOI(zp)->i_count) == 1 &&
!(zp->z_is_mapped);
!zn_has_cached_data(zp, 0, LLONG_MAX);
mutex_exit(&zp->z_lock);
/*
@@ -1075,7 +1075,8 @@ top:
&xattr_obj_unlinked, sizeof (xattr_obj_unlinked));
delete_now = may_delete_now && !toobig &&
atomic_read(&ZTOI(zp)->i_count) == 1 &&
!(zp->z_is_mapped) && xattr_obj == xattr_obj_unlinked &&
!zn_has_cached_data(zp, 0, LLONG_MAX) &&
xattr_obj == xattr_obj_unlinked &&
zfs_external_acl(zp) == acl_obj;
}