zfs_log_write: simplify data copying code for WR_COPIED records
#10956
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lr_write_t records that are WR_COPIED have the record data directly appended to them (see lr_write_t type definition). The data is copied from the debuf using dmu_read_by_dnode. This function was called, only for WR_COPIED records, as part of a short-circuiting if-statement's if-expression. I found this side-effectful call to dmu_read_by_dnode pretty hard to spot. This patch improves readability by moving the call to its own line. Signed-off-by: Christian Schwarz <me@cschwarz.com>
behlendorf
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Sep 21, 2020
grwilson
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Sep 22, 2020
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Status: Accepted
behlendorf
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Oct 1, 2020
lr_write_t records that are WR_COPIED have the record data directly appended to them (see lr_write_t type definition). The data is copied from the debuf using dmu_read_by_dnode. This function was called, only for WR_COPIED records, as part of a short-circuiting if-statement's if-expression. I found this side-effectful call to dmu_read_by_dnode pretty hard to spot. This patch improves readability by moving the call to its own line. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Wilson <gwilson@delphix.com> Signed-off-by: Christian Schwarz <me@cschwarz.com> Closes #10956
jsai20
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Mar 30, 2021
lr_write_t records that are WR_COPIED have the record data directly appended to them (see lr_write_t type definition). The data is copied from the debuf using dmu_read_by_dnode. This function was called, only for WR_COPIED records, as part of a short-circuiting if-statement's if-expression. I found this side-effectful call to dmu_read_by_dnode pretty hard to spot. This patch improves readability by moving the call to its own line. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Wilson <gwilson@delphix.com> Signed-off-by: Christian Schwarz <me@cschwarz.com> Closes openzfs#10956
sempervictus
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May 31, 2021
lr_write_t records that are WR_COPIED have the record data directly appended to them (see lr_write_t type definition). The data is copied from the debuf using dmu_read_by_dnode. This function was called, only for WR_COPIED records, as part of a short-circuiting if-statement's if-expression. I found this side-effectful call to dmu_read_by_dnode pretty hard to spot. This patch improves readability by moving the call to its own line. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Wilson <gwilson@delphix.com> Signed-off-by: Christian Schwarz <me@cschwarz.com> Closes openzfs#10956
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lr_write_t records that are WR_COPIED have the record data directly
appended to them (see lr_write_t type definition).
The data is copied from the debuf using dmu_read_by_dnode.
This function was called, only for WR_COPIED records, as part of a
short-circuiting if-statement's if-expression.
I found this side-effectful call to dmu_read_by_dnode pretty
hard to spot.
This patch improves readability by moving the call to its own line.
Signed-off-by: Christian Schwarz me@cschwarz.com
DB_DNODE_ENTERandDB_DNODE_EXITcalls into the if-statement's body is ok.Types of changes
Checklist:
Signed-off-by.