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zfs_file: rename zfs_file_fallocate to zfs_file_deallocate

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We only use it on a specific way: to punch a hole in (make sparse) a
region of a file, in order to implement TRIM-like behaviour.

So, call the op "deallocate", and move the Linux-style mode flags down
into the Linux implementation, since they're an implementation detail.

FreeBSD gets a no-op stub (for the moment).

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16496
This commit is contained in:
Rob Norris
2024-09-01 12:31:56 +10:00
committed by Tony Hutter
parent 2e646b5e5a
commit f1694496aa
6 changed files with 42 additions and 37 deletions
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include/sys/zfs_file.h
+1 -1
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@@ -53,7 +53,7 @@ int zfs_file_pread(zfs_file_t *fp, void *buf, size_t len, loff_t off,
int zfs_file_seek(zfs_file_t *fp, loff_t *offp, int whence);
int zfs_file_getattr(zfs_file_t *fp, zfs_file_attr_t *zfattr);
int zfs_file_fsync(zfs_file_t *fp, int flags);
int zfs_file_fallocate(zfs_file_t *fp, int mode, loff_t offset, loff_t len);
int zfs_file_deallocate(zfs_file_t *fp, loff_t offset, loff_t len);
loff_t zfs_file_off(zfs_file_t *fp);
int zfs_file_unlink(const char *);