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btrfs: send: add OTIME as utimes attribute for proto 2+ by default

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When send v1 was introduced the otime (inode creation time) was not
available, however the attribute in btrfs send protocol exists. Though
it would be possible to add it for v1 too as the attribute would be
ignored by v1 receive, let's not change the layout of v1 and only add
that to v2+.  The otime cannot be changed and is only informative.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2022-05-17 16:50:30 +02:00
parent 8f0ed7d4e7
commit 22a5b2abb7
1 changed files with 2 additions and 1 deletions
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3
fs/btrfs/send.c
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@ -2580,7 +2580,8 @@ static int send_utimes(struct send_ctx *sctx, u64 ino, u64 gen)
TLV_PUT_BTRFS_TIMESPEC(sctx, BTRFS_SEND_A_ATIME, eb, &ii->atime);
TLV_PUT_BTRFS_TIMESPEC(sctx, BTRFS_SEND_A_MTIME, eb, &ii->mtime);
TLV_PUT_BTRFS_TIMESPEC(sctx, BTRFS_SEND_A_CTIME, eb, &ii->ctime);
/* TODO Add otime support when the otime patches get into upstream */
if (sctx->proto >= 2)
TLV_PUT_BTRFS_TIMESPEC(sctx, BTRFS_SEND_A_OTIME, eb, &ii->otime);
ret = send_cmd(sctx);