ext4: ignore errors when issuing discards

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This is an effective revert of commit a30eec2a8: "ext4: stop issuing
discards if not supported by device".  The problem is that there are
some devices that may return errors in response to a discard request
some times but not others.  (One example would be a hybrid dm device
which concatenates an SSD and an HDD device).

By this logic, I also removed the error checking from ext4's FITRIM
code; so that an error from a discard will not stop the FITRIM from
trying to trim the rest of the file system.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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This commit is contained in:

Theodore Ts'o 2011-04-30 13:47:24 -04:00

parent 39db00f1c4

commit d9f34504e6

1 changed files with 9 additions and 25 deletions

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fs/ext4/mballoc.c

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